Not sure why it wouldn't be wise. I'm as paranoid as the next guy, but storing ammo is legal. Until that changes, don't be afraid. Instead, share your knowledge with others so they may learn also.
Now, once it becomes outlawed, then i'll have to admit how it sunk with my firearms and boat in the Ohio River...
Yes, I keep a supply on hand that I do not shoot. Not sure how much, but it's enough to make my wife wonder about me sometimes.