Why is DHS ordering 450 million rounds of .40cal Hollow Point ammo?

WHY SUDDENLY DOES THE DEPARTMENT OF HOMELAND SECURITY, NEED MILLIONS OF ROUNDS OF HOLLOW POINT AMMO. 

Why has the Obama Administration order 1.6 billion round of Ammunition for non-military use?

RECENTLY THE OBAMA ADMINISTRATION AND DHS ORDERED SOME 1.6 BILLION ROUNDS OF AMMUNITION MUCH OF IT HOLLOW POINT ROUNDS.  HOLLOW POINT ROUNDS ARE BANNED BY THE GENEVA CONVENTION AND IS NOT USED BY OUR MILITARY.  LEAVING ONE TO ASK WHAT IS ALL THIS AMMO NEEDED FOR.  THE ONLY USE I CAN SEE IS THAT IT INTENDED FOR USE ON THE GENERAL PUBLIC.  AMERICAN HUNTERS DO USE HOLLOW POINT AMMO, PERHAPS ITS TO COUNTER THEM IF SOME CRAZY GUN GRAB IS BEGUN.