Terrorist pilot Mohammad Atta blew up a bus in Israel in 1986. The
Israelis captured, tried and imprisoned him. As part of the Oslo agreement with the Palestinians in 1993, Israel had to agree to release so-called "political prisoners". However, the Israelis would not release any with blood on their hands.

The American President at the time, Bill Clinton, and his Secretary of State  "insisted" that all prisoners be released. Thus Mohammad Atta was freed and eventually thanked the US by flying an airplane into Tower One of the World Trade Center.

This was reported by many of the American TV networks at the time that the terrorists were first identified. It was censored in the  US from all later reports.