Hundreds of flights pass over conflict zones daily

The U.S. government is banning all flights to and from Israel's main airport in Tel Aviv.

Their reasoning? On Tuesday, a rocket launched by Hamas in Gaza struck just a mile away from Ben Gurion Airport.

Israel is urging the U.S. to reconsider but the White House says it won't overrule the ban.

This comes just days after a Malaysia jet was shot down mid-air over a war zone in eastern Ukraine. All 298 passengers on board were killed.

There are dangerous fly zones all over the world and it might be a surprise to many that passenger jets fly through them daily.

So, why aren't these combat areas off-limits for flights?

CNN's Rene Marsh has this OutFront investigation.