Philadelphians are wondering how a building in its central city collapsed while being demolished, taking another building down with it and killing six people in the process. City leaders are promising an investigation to get to the bottom of the matter.
A dozen or more people were injured, at least one fatally, according to initial reports, when a Salvation Army store in central Philadelphia collapsed Wednesday morning. The search will continue for the next 12 to 24 hours, officials said at a press conference.
The latest batch of tornadoes that slammed into Oklahoma last week brought more death and destruction. Surprisingly, among the dead were three professional scientist who make their living following and researching tornadoes. These men, profiled on a TV series, were caught surprised by a tornado that behaved unexpectedly.
In the wake of the the meltdown of the Fukushima Daiichi nuclear plant in Japan two years ago, a great deal of radiation was released into the atmosphere. So a group of Japanese residents set out to determine where the radiation was, block-by-block. Now they hope to do the same thing for air pollution in two U.S. cities.
In the wake of Monday's deadly tornado in Oklahoma City, the media was widely praised for providing timely, accurate information to residents to help them stay safe during the storm. In many cases, the media was represented by the local TV meteorologist, who is on the front line of warning viewers of impending severe weather.
Search and rescuers were combing through the rubble of Moore, Okla., after a devastating tornado "tore the heart out" of the suburban Oklahoma city. At least 24 people were reported dead, with that toll expected to continue to rise as the rescue turns into a recovery.
As the death toll continues to rise in a garment factory collapse in Bangladesh, a miracle. A woman was pulled alive from the rubble on Friday. But another eight people died in a factory fire on Wednesday. One economist says a small change would make all the difference.
American hospitals don't have deep experience with injuries from explosions in urban areas. When the hospitals were faced with treating hundreds wounded by the Boston Marathon attacks, they could have been overwhelmed. But they weren't, in part because of lessons learned by Israel.
Heavy rains, following a winter with considerable snow, has led to record-breaking floods in parts of the Midwest, and high waters in most of the rest. That flooding puts a heavy load on communities, including the city of Clarksville, which is one of the last Mississippi River communities without a levee.
Over the weekend, runners gathered in Bethlehem to run the city's first-ever marathon. While the realities of the Israeli-Palestinian situation and the Boston Marathon attacks influenced the events, the races went off without any problems.