1. At least six people are dead and 140 are injured after an Amtrak train from Washington, DC, to New York City partially derailed and turned over in Philadelphia, shutting down service in the Northeast region. The National Transportation Safety Board began investigating on Wednesday morning. Sources told NBC News that the train’s speed is being examined as a possible cause of the crash.
2. Facebook will begin testing direct publication of content from nine media outlets on Wednesday as part of an extensive partnership that, while horrifying traditionalists, could greatly grow the audience of articles and speed up load times. The New York Times, BuzzFeed, and National Geographic are among the outlets participating. IPhone users will see multimedia enhancements not available on Facebook’s Web edition. The program is expected to start with a few articles rolled out on the social network, then expand.
!!! ?????????? !!!— Domino's Pizza (@dominos) May 12, 2015
4. Facebook is encouraging its vendors to give their own employees raises and better benefits, such as a base salary of $15 per hour, amid growing concern about income disparity in the Bay Area.
5. Walmart and bottled-water companies are facing criticism for using water from California, which is enduring its most severe drought in decades. Aquafina and Dasani are among the brands that draw their water from the state.
6. Toyota and Nissan have added 6.6 million cars to a recall due to potentially faulty airbags made by Japanese company Takata. The recall includes 35 models.
7. Ted Wells, who investigated "Deflategate" for the NFL, held a press conference on Tuesday to defend his findings that implicated Tom Brady. Wells said he found direct evidence of the quarterback’s knowledge of deflated balls, and defended himself against what he called "personal attacks" by Brady's agent and others.