Should we put cameras in airplanes?

After the tragic airplane crash in Europe, should we do this assuming the crash was intentional? I know this sounds ridiculous but this is the world we live in.

the better thing is to screen pilots of their current aptitude. putting cameras on an airplane won't stop a pilot from intentionally crashing a plane.

Usually I'm against the idea of cameras but in this case sure. It wont stop anything from happening but would help in people knowing what happened later.