If we imagine a map in our heads, Tetuan is up in northern Morocco, where there's that little town that belongs to Spain.

NPR: Moroccan Village Funnels Suicide Bombers to Iraq

Riding piggyback on the drug and contraband traffic that's going in and out of Tetuan and Ceuta are handlers who pass people on to other people who pass people on, and they eventually wind their way to Damascus or to Istanbul, and then over the border into Iraq.

NPR: Moroccan Village Funnels Suicide Bombers to Iraq