investigation this morning? reporter: as you mentioned, the italian police arrested two of the 28 survivors of the ill-fated ship. one apparently was the tunesian captain. the other was a syrian deck hand of sort. they are questioned. as far as beyond that it s not all together clear at this point how this ship capsized. one u.n. official saying it was caused because a portuguese merchant vessel got too close and caused a big wave and therefore, it capsized. we spoke to two medics from the order of malta who were at the scene shortly after the ship went down. they believe it was caused by many of the passengers we they saw this approaching ship going to one side and causing it to capsize. these two medics told us that they were out on the ocean at
1:00 a.m. in the dark in a dinghy looking for bodies. they described what they saw as a carpet of bodies bobbing in the area. they thought they were all dead. as they went in to recover some of the bodies they heard one man shouting for help. they brought him on board. another man, they saw, floating with his head up and eyes open. they couldn t tell if he was dead or alive when they reached to pull him out of the water and he grabbed their hands and they brought him in. it sounded like a hellish scene on the water early sunday morning when that ship went down. john. ben wedeman for us in sicily. this problem only getting worse as people forced out of their countries into dangerous situations. new details this morning. what federal prosecutors are calling the biggest isis recruitment case in the united states. six men, somali americans, aged 19 to 21, conspireing to sneak