Somali terrorism suspect Ahmed Abdulkadir Warsame arrived in New York Monday to be tried in civilian court. The Justice Department says Warsame was a leader of the Somali militant Islamist group Al-Shabab. Warsame was arrested by the US military in April in the Gulf and was taken to a naval vessel where he was interrogated for two months before being brought to New York. Anchor Marco Werman talks with Matthew Waxman, associate professor at Columbia Law School, New York.