'This was a disaster waiting to happen' | What experts say about the airspace above DC after deadly midair collision
The skies above the nation's capital are crowded with other planes and helicopters, and pilots must also take into account the many restricted zones in the area.
FDA approves painkiller designed to eliminate the risk of addiction associated with opioids
The new drug will carry a list price of $15.50 per pill, making it many times more expensive than comparable opioids.