美国会采取行动加强对免签入境的控制

The U.S. House of Representatives has overwhelmingly approved a bill that would bar people who have visited Syria, Iraq or any "country or area of concern" in the past five years from a program that allows visa-free entry to the United States.

The legislation is part of a bipartisan push to amend the Visa Waiver Program that currently allows citizens of 38 countries to travel to the U.S. for stays of 90 days and less without first obtaining a visa from an embassy or consulate.

The bill, which passed 407-19 late Tuesday, would institute a series of changes, including requiring participating countries to check travelers against Interpol databases to determine whether they are wanted by law enforcement agencies based on ties to terrorism or criminal activity.

To prevent falsification of passports, the measure would require all 38 countries to issue what it calls “e-passports” containing biometric information. The bill would require countries to be able to confirm that such documents are legitimate when they are scanned.

Some 20 million visitors come to the U.S. annually under the visa waiver program. They already are screened through an online system maintained by the Department of Homeland Security.

To take effect, the changes must be approved by the Senate and President Barack Obama.