1. Profile passengers based on their ethnicity and religious preference.
No profiling is required.
2. Arm the pilots.
Everyone on the aircraft may, or may not be armed. Nobody will ever know.
3. Allow concealed weapons license holders to carry on board flights.
A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.
Why should only licensed concealed weapon holders have the right to protect their own life?
Everyone on an American airliner may or may not be armed at any time. Now, as a terrorist, are you willing to take that risk?
Our founding fathers had the correct answers, if we only stop and listen.
Point taken.