While all of this helps, it's hard to say that it fixed the issue. As far as I'm aware, for US based flights, there have been a few bombing attempts, but no hij

While all of this helps, it's hard to say that it fixed the issue. As far as I'm aware, for US based flights, there have been a few bombing attempts, but no hijacking attempt since 9/11. It's hard to say if this is a result of these security measures, the TSA security, or just the fact that hijackings aren't that common.