UPDATE 12:12 PM: ABC’s World News With Diane Sawyer is expanding to one hour again tonight as part of the network’s continuing coverage of the Boston bombings. ABC News also says it will air a special edition of Nightline with Terry Moran anchoring From Boston. That’s the only change from the networks announced so far. Both NBC’s Brian Williams and CBS’ Scott Pelley are anchoring their networks news from Boston tonight. And Fox News’ Shep Smith also will again be anchoring the network’s coverage from Boston at 3 PM and 7 PM ET. CNN’s Anderson Cooper will continue to report from Boston with his AC 360 live at 8 PM and 10 PM ET. Cooper will be joined by Chris Cuomo, Jake Tapper and Dr. Sanjay Gupta among others in CNN’s coverage. CBS said it is going back to its regular programming tonight. Two bombs exploded yesterday at the finish line of the Boston Marathon, killing 3 people and injuring more than 170. This morning President Obama called the attack “heinous and cowardly” and said the FBI is investigating it as an act of terrorism, though they still don’t know who’s behind the bombings.
Tonight’s Boston Celtics-Indiana Pacers game in Boston was cancelled yesterday by the NBA after the blasts, and other upcoming major sporting events are taking extra steps in security planning for their events including the Kentucky Derby and Indianapolis 500.
PREVIOUS MONDAY PM: NBC News will air a one-hour primetime special at 10 PM ET tonight on the Boston Marathon explosions. So far, NBC is the only network to interrupt its primetime schedule for special coverage. That means that the new episode of the network’s Revolution scheduled for tonight will not air this week. The J.J. Abrams-produced post-apocalyptic series recently returned from a long winter break to unsteady ratings. NBC is also extending its network newscast to one hour. CBS says Scott Pelley will be anchoring an extended one-hour-and-a-half-long version of the CBS Evening News tonight from New York from 6:30 PM to 8 PM ET. (more…)