Smiling while wearing a pair of Snapchat filter glasses, this is the widow of Boston bomber Tamerlan Tsarnaev goofing around on social media. Katherine Russell poses with the nine-year-old daughter she had with the terrorist who was shot dead by police in the April 2013 attack, at the time, the worst on US soil since 9/11. Russell still wears a veil over her head suggesting she has not left the Muslim faith after converting to the religion when she married Tamerlan a decade ago. In another photo Russell, who goes by the name Karima, poses in a navy headscarf with...