NEWS : 2013 in news: Terror in Boston, gridlock in Washington, history at the Vatican "

The race clock showed 4:09:43 — the precise division between order and chaos, joy and panic, life and death. The first blast, just off the finish line, was strong enough to stiffen flags along the final yards of the course. Thirteen seconds later came another.
Three people were killed and 264 hurt. Over the next five days, the country learned that pressure cookers make easy bombs, joined an enormous manhunt, and watched as an entire city was locked down, until the surviving suspect was cornered in a boat.
The bombing of the Boston Marathon endures as the biggest event in a dizzying year of news.