YOU DON’T SAY? Investigation: Undercover agents snuck fake explosives, banned weapons past TSA.

Homeland Security officials confirmed to Fox News that TSA screeners failed 67 out of 70 tests — or 96 percent — carried out by special investigators known as “red teams.”

In one case, an undercover agent with a fake bomb strapped to his back set off a magnetometer — but the screener still failed to find it.