NTSB to look at possible computer role in D.C. crash

National Transportation Safety Board officials today said that the agency's investigators will examine whether computer systems, sensors or cell phones played a role in yesterday's Washington, D.C., Metrorail crash that killed nine people. Experts note that there are also several other possible causes of the crash of one Washington Metropolitan Area Transit Authority train into another in a rear-end collision of such force that one train literally climbed on top of the other. They could include track problems, mechanical failures and human error.

Read More