I think it's good to take time out and get things in perspective.
Since the Paris attacks, it has dominated the news with speculation, interviews, what should be done, , etc etc. Yes it was appalling, and I feel for everyone who lost a loved one or who was hurt. But worse things have happened, it wasn't 9/11, it wasn't as bad as a crashed aircraft, or a major earthquake. The truth is that it reminds us that it could happen here, to us and our families. We have to live with that fear or find a way to accept that death can come to anyone at anytime.