People around Boston didn't stay inside Friday because the city forced them to. And this distinction matters.
The estimates at this early stage vary widely.
The city conducted vivid, citywide disaster simulations in 2011 and 2012.
29 percent of the city's population is foreign born.
Much of last night's action took place in Cambridge and Watertown, a western suburb of Boston.
Boston area residents and business owners are being asked to "shelter in place" during this morning's manhunt. But what does that look like?
All transit has been suspended; residents urged to remain in their homes. Police are conducting a door-to-door manhunt for second bombing suspect.
See how your city's black-white segregation levels have changed between 1970 and 2010.
Even though they lose about a half a billion dollars a year.
Both President Obama and Rep. Paul Ryan propose cutting non-defense discretionary spending to a historic low.
Participants in the 2013 Boston Marathon hailed from across the globe.
Early reports suggest at least one of the bombs used in yesterday's Boston Marathon attack was hidden in a garbage can. There's a case to be made for removing them all.
New York, Los Angeles, and Washington, D.C. have stepped up police presence on transit, at tourist attractions, and near hotels.
If there's an uplifting lesson from Boston, it may be the many people who will overcome the trauma of tragedy.
Race officials are reviewing security precautions with local police after the attacks in Boston Monday.
Modern-day militia activists have attempted to hold rallies on this holiday in recent years.
Maps of where blasts occurred, the race course, the streets in question.
Scores are rising as teachers track data and look for patterns to improve classroom learning.