First, a key reason for police interviews is to find people's associates, roll up terrorist networks and prevent future crimes. Second, I find it odd that you

First, a key reason for police interviews is to find people's associates, roll up terrorist networks and prevent future crimes. Second, I find it odd that you think putting killers in jail is "a waste". Should we just let them go and have another try? Last, you assume that these individuals murder innocent people because they have some valid point about society, which policy-makers need to learn and act upon. What point would that be?