Tamerlan Tsarnaev: Boston Marathon

Massachusetts Institute Of Technology Police Officer Sean Collier Dept: BOSTON - Lawmakers are asking tough questions about how the government tracked suspected Boston Marathon bomber Tamerlan Tsarnaev when he travelled to Russia last year, renewing criticism from after the Sept. 11 attacks that failure to share intelligence may have contributed to last week's deadly assault, according to Winnipeg Free Press. "There still seem to be serious problems with sharing information, including critical investigative information ... not only among agencies but also within the same agency in one case," said committee member Sen. Susan Collins, R-Maine and Pallbearers carry the casket of fallen Massachusetts Institute of Technology police officer Sean Collier into St. Patrick's Church before a funeral Mass, in Stoneham, Mass., Tuesday, April 23, 2013. Collier was fatally shot on the MIT campus Thursday, April 18, 2013. Authorities allege that the Boston Marathon bombing suspects were responsible. AP Photo/Steven Senne Following a closed-door briefing on Capitol Hill with the FBI and other law enforcement officials on Tuesday, Sen. Saxby Chambliss, R-Ga., vice chairman of the Senate Intelligence Committee, said it doesn't appear yet that anyone "dropped the ball." But he said he was asking all the federal agencies for more information about who knew what about the suspect. (www.immigrantscanada.com). As reported in the news.