Discussion question: How can we improve our defenses against terrorists?

The Times Square bombing attempt has spurred conversation on everything from surveillance equipment in US cities to winning hearts and minds in Pakistan. What lessons do you draw from the latest terrorist plot? Nearly a decade after 9/11, are the right defense measures in place? What improvements would you like to see?

We're looking for constructive ideas, not rants or personal attacks. We may highlight the best comments from readers in a future blog post.