U.S. adds new restrictions for European travelers

WASHINGTON -- The Homeland Security Department is adding new screening requirements for Europeans and other travelers from countries for which a visa isn't required for U.S. entry.

Homeland Security Secretary Jeh Johnson says travelers from 38 Visa Waiver Program countries, including most of Europe, will have to provide more passport data, contact information and aliases before they can travel to the United States.

The move comes amid growing concern of threats from Western fighters returning from Syria.

Monday's decision to add scrutiny for foreign travelers is the second time in a week that Johnson has announced security changes. Last Tuesday he announced extra security at various federal government buildings in Washington and other major American cities in the wake of a fatal shooting in Canada's capital city.

FBI Director James Comey told "60 Minutes" last month that more than 100 Americans have been caught going to Syria or went to fight and have returned. Intelligence estimates put the number of Westerners who have joined the militants as high as 3,000.

"These homegrown violent extremists are troubled souls who are seeking meaning in some misguided way," Comey said. "And so they come across the propaganda and they become radicalized on their own independent study, and they're also able to equip themselves with training again on the Internet, and then engage in jihad after emerging from their basement."