Family members of 9/11 victims gathered at Ground Zero Sunday to urge legislators to strengthen a bill that would deport illegal immigrants in the U.S.

The bill, being sponsored by Congressman Peter King (R ? Seaford), would label illegal immigrants as felons and would mandate stronger border security. Family members say poor border patrol is partly to blame for their loss since three of the 9/11 hijackers were immigrants who had overstayed their visas.

Opponents to the bill say terrorists should not be compared to undocumented workers.