Is it a 'reliable alternative'?  Are there aspects of human behavior trends involved?

Colombo
Going on now, January 9, 2014 10:30 am E.S.T.: protesters outside U.S. Embassy in Colombo, Sri Lanka, per report from Sri Lanka online newspaper published '8 hours ago'. 
National Freedom Front, as said in source article, SundayTimes.lk, is involved.

A story published '4 hours ago' as of 2:20pm E.S.T., Army referring to Sri Lanka Army:
Army hits out at US Embassy

By admin on January 9, 2014
The army has accused the US Embassy in Colombo of making  baseless allegations which it says could be part of a much larger campaign that they intend launching in the near future.

Army spokesman Brigadier Ruwan Wanigasooriya said the allegation made by the US Embassy that Sri Lanka army shelling had killed hundreds of families at St Antony’s Ground, Iranapallai in 2009 is completely baseless.

Source and full story surfaced early in query results at http://colombogazette.com/2014/01/09/army-hits-out-at-us-embassy/


Traffic jams reported, reference Galle Road, Kollupitiya. 

India
Concurrently, possibly including yesterday, and a situation that has escalated since the incident that is said to have caused the reactions, Sri Lanka at the very southern tip of India or just abutting so, north of there, at US. Embassy and Consulates in India generally speaking, reactions are ensuing the treatment of the India diplomat, reference 12/12/'13. 

A few weeks ago, barricades were requested to be moved.
Is the timing of developments most prudent respective safety measures?

Toward clarification as to the who, what, when, and where of embassies/consulates in India and Sri Lanka affected --:

• Today and developing as we speak, Thursday January 9, 2014, time zone differences in consideration:

• U.S. Embassy located in New Delhi, is where request concerning commerce activities and diplomatic immunity rights
• U.S. Embassy located in Colombo, gathering of protesters, reference objection to visit of U.S. Ambassador

• U.S. Embassies and Consulates in India and regarding protesting overview outline:
• Protests reaction to situation that evolved with diplomat in New York:
• Embassy
• New Delhi
• Yesterday, January 9, 2013, thereabout, extent of continuation of protests not available at this time, father of diplomat at protest.  Request made to embassy to stop commercial activities.
  
• December 18th, 2013, thereabout, demand for apology, protesting
  
• Consulate
  
  • Chennai
  • NEWS: Devyani's father leads protest outside US consulate
    
    ...her father on Tuesday led a protest march outside the American consulate here, terming the US administration's action against her as "illegal"....
    
    Source and full story: http://www.news.nom.co/devyani-s-father-leads-protest-outside-7676913-news/
    
    Congress workers protest outside US Consulate General campus
    PTI Dec 18, 2013, 06.47PM IST
    
    CHENNAI: Over 50 Congress workers today staged a protest outside the US Consulate General campus here, demanding an apology from the US government for the way in which Indian diplomat...
    
    Source and full story: http://articles.economictimes.indiatimes.com/2013-12-18/news/45338391_1_congress-workers-protest-congress-party-diplomat
    
  • Mumbai
  • Last Tuesday, January 7th, similar protests to Chennai
    
  • Kolkata
  • December 19th, 20th, thereabout, students and academicians showed, demanding barricades be removed
    
  • Hyderabad
  • Protests with the organization of them credited to a few other groups, coalitions and/or unions, in similar manner to Kolkata, and same date
    
• Protests in recent history about other matters: 
• Embassy
• New Delhi
• After shooting rampage at Sikh temple in Wisconsin, a show of presence, first week of August 2012
• December 2010, whether event did or did not materialize, information not available
  SGPC plans protests outside US embassies
  TNN Dec 16, 2010, 06.44am IST
  
  AMRITSAR/CHANDIGARH: Shiromani Gurdwara Parbandhak Committee (SGPC) has exhorted Sikhs across the globe to stage demonstrations in front of US embassies on December 23 to register their protest against humiliation meted out to Sikhs in America, even as Shiromani Akali Dal (SAD) lodged a strong protest with US ambassador Timothy J Roemer in New Delhi on Wednesday, regarding the "discriminatory instructions of US administration to pat the turbans of Sikhs at US airports".
  
  SGPC president Avtar Singh Makkar said SGPC would protest in front of the US Embassy in Delhi and hand over a memorandum to the US ambassador. "The attitude of US authorities is not only against Sikhs' religious sentiments, but also a violation of human rights," he said.
  Source and full story: http://articles.timesofindia.indiatimes.com/2010-12-16/chandigarh/28231069_1_sikhs-avtar-singh-makkar-turban-issue
  
• Consulate
  
  • Chennai
  • September 2012, protests outside, however moving very close, past ordinary security limits, regarding film, 'Innocence...', credited with being produced in the U.S., yet also had news stories of implications occurring in other places.  Indian police were reported to have formed human wall of protection at the scene at the consulate.
    
  • Mumbai
  • August, end of 2nd week, 2012, Saturday, riots, included targeting a train.  Specifics respective to consulate are not available at this time.  Insofar the behavioral patterns, NDTV says, "The police believe this mob which boarded the train at Kurla, mingled with angry protestors who were already there, instigated the others who seem to have also joined in taking advantage of the situation." [ndtv.com/article/cities/mumbai-riots-footage-shows-armed-mob-riding-train-254369]
    
  • Kolkata
  • Late September 2012, reference 'Innocence..' film
    
  • Hyderabad
  • intentionally left blank, above content sufficient for providing summary
    

Just in, 11:00am E.S.T., protesters in India are asking the U.S. embassy or at least some aspects thereof, be shut down, according to a report released '2 hours ago'.

With all the economic cooperation going on between the U.S. and India, valuable for the livelihood of millions, opinions are closing after an incident is not commensurate.

Of course is the best effort of U.S. diplomacy to remedy the situation after the referent incident in New York.

The people of India want to show that they have a strong belief and manifested with the zeal in form of protesting, in what their culture upholds as symbols of dignity.  It can be gauged that the protests are not to such an extreme that it has consumed the health of the numbers of people such as during a war, then again, persons have been arrested, signifying a sacrifice of their futures for the stand they are making.  Looking through different lenses, to a country with a population density with a different set of dynamics than the U.S. in many places, and that India as a country is almost considered by many as, as old as the same India that is in or near the region that first felt the foot of the first man Adam, with that comes what the people might feel as their 'place' in the world of diplomacy and chivalry of the earth's people, the situation regarding the dimensions of treatment of their diplomat, they want to make clear they are taking it seriously.  Meantime, to perspectives that might be held by some some American, it might be hard to understand all of the why's, as to why it being taken seriously, resultant of things such as upbringing, priorities laid out in culture, and so forth.

Berlin
October: Khalq members said to be from Iran, were outside embassy in Berlin, Germany
Reports that marked in the timeline of events was Friday October 18, 2013.

Tel Aviv
A few days ago: Tel Aviv known as a city of Israel, a location of embassy, has seen what reports show of 1,000 and even 10,000 African migrant protestors.

Concerns that Present Themselves
Words from the wise, whereupon a convergence of a mass of people outside of an embassy, there is no guarantee that every member of that protesting mass is identified as comprising a contraindicated limited group.  There might be other people joining the protest under a banner or slogan, from another banner.
Simplifying further, if the protest is said to be comprised of immigrants from country 'x' protesting for higher wages, it might actually be the case that in that amalgam of people standing outside, are people that illegally arrived from countries 'y', 'a', 'b', 'c', etc., taking long routes to get to their objective destination the embassy, for the purpose of readying for turbulence for something that has nothing to do with higher or lower wages.

There are more events that can be added to the list, the above cited are just a few to summarize.