At least five of the Sept. 11 hijackers exploited a glaring hole in visa security to stay in the U.S. beyond their time — allowing them to board the planes and conduct their murderous attack. Fifteen years later, and despite a clear consensus on the need for improvement, that gaping hole remains.
“In too many cases that’s still happening — they come in legally, but we don’t know if they’ve left, and if they haven’t left, we don’t know where they are,” said Tom Kean, former governor of New Jersey and chairman of the 9/11 Commission that looked into the 2001 attack and crafted a long list of changes to put homeland security on firmer footing.
“That is probably the most important unfulfilled recommendation,” Mr. Kean told reporters this week ahead of the commemoration of the attack that ushered in the current war-on-terrorism era.
It’s also a key part of GOP presidential nominee Donald Trump’s immigration plan going forward.