FILE - In this May 7, 2012 file photo, a Boeing 787 Dreamliner arrives at Ronald Reagan National Airport as part of a worldwide "Dream Tour" in Washington. The U.S. Federal Aviation Administration said Friday, Jan. 11, 2013 it is launching a comprehensive review of the critical systems of the 787 after a fire and a fuel leak earlier this week. (AP Photo/Evan Vucci, File)
It appears that finding what is causing lithium battery problems on the Boeing 787 Dreamliner is going to take a a while. The latest from ABC's Aaron Katersky.
