In late March. European security officials told the Associated Press that the Islamic State group had trained at least 400 attackers and sent them to Europe to carry out specific attacks. Of course. we have a visa waiver relationship with most of Europe. and that means these European passport holders will be able to visit the United States without special vetting by our officials. There is an exception to that for those European passports that have been stamped indicating they visited Syria or Iraq. This should not give us a whole lot of false security because. typically. foreign fighters who want to join ISIS travel to Turkey. where their passport is stamped with a Turkish stamp and then they sneak into ISIScontrolled areas.