Yahoo TV
Please enable Javascript

Javascript needs to be enabled in your browser to use Yahoo TV.

Here’s how to turn it on:

The new-age battle against terror

CBSTV Videos
It's been nearly 12 years since the Sept. 11 attacks. Americans have started to hope that the nightmare of terrorism was behind us ... but that all changed Monday at the Boston Marathon. "48 Hours" correspondent Troy Roberts looks at our preparedness.