The fuss is that you're not supposed to get caught doing it.
Well, okay. Obviously the fuss is about that. But the righteous indignation? Puh-leeeez.
And the U.S. would do the same thing if they found out the Germans were bugging the Oval Office.
Listen, this is just the price the U.S. will have to pay for getting its hand caught in the cookie jar. Everyone tries to spy on everyone else... and everyone has to pay the price of others' righteous indignation if they get caught. That's just how it is. We'd do the same thing in their shoes.