A French engineering student who was expelled from Syria on suspicion of trying to join Islamists fighting U.S. forces in Iraq has been placed under formal French judicial investigation, a judicial source said on Friday. Moustapha el-Sanharawi, 20, from the central city of Tours, was arrested in mid-October on the Syrian-Iraqi border. He was a student at ENSTA, a French engineering institute, in Paris before leaving for Syria, the source said. Agents from the DST domestic intelligence service detained him on his arrival back in France on Wednesday. Full Story