Laws drawn up in wake of school massacre that left 17 people dead

The NRA has challenged new gun control laws in Florida drawn up after the school massacre that left 17 people dead.

The school safety bill, which has been signed by the state's governor, raises the minimum age to buy rifles from 18 to 21.

But the NRA has filed a lawsuit disputing the bill - saying it's unconstitutional under the second and 14th amendments.