[DMN] A federal grand jury in Minneapolis charged two Somali Americans, Abdifatah Yusuf Isse and Saleh Osman Ahmed, with providing material support to terrorism. The indictment is the first public step in a sweeping federal investigation of more than 20 young Americans who are believed to have joined a militant Islamist group in Somalia, the Shabaab, that is affiliated with Al Qaeda. Both Isse and Ahmed have pleaded guilty to providing material support to terrorism.