I think about security both during my day job and as I teach and write.  

Sometimes it's even more important to think about the larger picture.  To step back and reflect upon the nature of conflict.  About why it happens.  About the reasons why we fight. Why some are even willing to give up their lives for ephemeral concepts.  Why we spend so much - time, money, lives - all to secure ourselves.

During these times, I find Carl Sagan's reflection on our solitary existence both humbling and moving.  His short, poignant speech, I think provides all that we need to reconsider so much of what we do on a daily basis.  I can think of no better intervention for would-be no-gooders than a gentle reminder from Carl Sagan.  Listen for yourself.