Keep Calm and Carry On

That's the message of Bruce Schneier. But not all agree. This is sad and unfortunate:

Candace Rispoli was cheering on a friend in the race when the festive atmosphere turned into a "terrifying hell."
...
Even though Rispoli suffered only minor injuries, the attack has changed her life forever.

"I know I personally will never participate in an event of this nature in a city in fear that something like this could happen again. My hands have still not stopped shaking," she said.

I hope Ms. Rispoli is able to be strong and overcome her fear. Because succumbing to fear is just what they want.