Passengers were thrown into the air by severe turbulence with little warning, NTSB report says

Turbulence that injured more than a dozen people on a Delta Air Lines flight came with little warning to the pilots, even though they knew they were near thunderstorms, according to a new preliminary report from the National Transportation Safety Board.

​ Turbulence that injured more than a dozen people on a Delta Air Lines flight came with little warning to the pilots, even though they knew they were near thunderstorms, according to a new preliminary report from the National Transportation Safety Board. Read More Breaking News, Latest News and Videos | CNN