What are the psychological reasons behind opposing gun control, even when it could save lives in school shootings?

If you have previously worked for a political organization (but not at cabinet or other senior level), and you are now wanting to apply for role at a non-political organization, do you have to declare that political role as a 'conflict of interest'?
Why are emotionally vulnerable people often targeted by cults, and how do these groups identify potential recruits?
If there were humans on another Earth, how could they be exactly like us? Could there be some ancient migration story behind it?