I can't.
The only legit reason I can think of is so the GPS in our cars can deliver us to the proper destination.
I can tell you why no one can come up with a legitimate reason for this. Obambi is NOT trustworthy, he is a serial liar, his cheif of staff has the attitude that a crisis should never go to waste, obambi stated that he regrets that the Constitution limits what govt CAN DO TO PEOPLE, the NYC flyover, bowing to a foreign leader, insluting everyone who didn’t drink the kool aid, past associations with Bill Ayers and reverend rong, tony rezko, louis farakhan, not saluting the flag. He has given us the strong impression that he is capable of doing something evil and probably would. This also explains the huge rise in gun and ammo sales.