Iranian-backed forces are suspected in the attack.
Federal investigators will also look for malware or viruses in the highly unusual gas explosions.
Even when vets had no symptoms at the time, exposure to bomb blasts seems to cause long-term damage.
Fifteen people were not immediately accounted for following multiple explosions and a fire at a propane tank refilling plant in central Florida, said John Harrell, a spokesman for the Lake County Sheriff's office. But by 2:00a.m., all of the plant's employees were accounted for.
Ravaged site is now being treated as a “crime scene” as the railway says someone shut down a locomotive keeping the brakes on.
Casualties feared after a train carrying crude oil derailed in the Quebec town of Lac-Megantic early Saturday, sparking explosions and sending massive flames through the air. The fire has prompted an evacuation, forcing at least 1,000 residents from their homes.
Taliban militants attacked key buildings near Afghanistan's presidential palace and the U.S. CIA headquarters in Kabul, a brazen assault that could derail attempts for peace talks to end 12 years of war.
Seven Taliban insurgents including suicide bombers attacked the main airport in the Afghan capital, Kabul, early on Monday, with explosions and gunfire heard near an area that also houses major foreign military bases.
Video posted online by Syrian opposition activists appears to show the moment one in a series of deadly explosions struck the campus of Aleppo University on Tuesday as students were taking exams. The clip begins with a view of smoke rising
Map of major natural gas and oil pipelines in the United States. Hazardous liquid lines in red, gas transmission lines in blue. Source: Pipeline and Hazardous Materials Safety Administration. By Lena Groeger, ProPublica At 6:11 p.m. on
- 1 of 2