So any future attempt requires higher level of competence to pull it off, which means it's probably very unlikely that such an attack will ever happen again.
If we want to prevent hijacking of planes for terrorism purpose, then we'll need to go deeper and fix the root cause of extremism which required tons of focused effort, probably tackling seemly intractable problems. Not spend billions upon billions more on likely ineffectual screening procedure and tools to satisfy the surveillance state.
If we want to prevent hijacking of planes for terrorism purpose, then we'll need to go deeper and fix the root cause of extremism which required tons of focused effort, probably tackling seemly intractable problems. Not spend billions upon billions more on likely ineffectual screening procedure and tools to satisfy the surveillance state.