File photo of damaged batteries displayed during a Washington news conference regarding a fire aboard a Japan Airlines Boeing 787 Dreamliner

 
File photo of damaged batteries displayed during a Washington news conference regarding a fire aboard a Japan Airlines Boeing 787 Dreamliner
Damaged batteries are displayed during a Washington news conference on an investigation into the January 7 fire that occurred on a Japan Airlines Boeing 787 Dreamliner at Logan International Airport in Boston in this file photo taken February 7, 2013. REUTERS/Yuri Gripas/Files