Slipped through her fingers: Big sis admits DHS knew Boston jihadist traveled to Russia in 2012.- Homeland Security Secretary Janet Napolitano stunned a Senate panel when she admitted that her agency knew of alleged Boston bomber Tamerlan Tsarnaev's trip to Russia last year even though his name was misspelled on a travel document, as she testified before the Senate Judiciary Committee on sweeping immigration amnesty legislation. The admission that her department was aware of Tsarnaev's six-month trip to Dagestan - a hotbed of radical Islamic activity - surprised two 'Gang of Eight' senators, Lindsey Graham (R-SC) and Chuck Schumer (D-NY),...