Hacking is already illegal. What could governments have done to prevent this?
I'm not a US citizen and I don't live in the States, even though I am a huge admirer of how your political system was first set up (the Founding Fathers and all that), but all I want to say is that if you, as a citizen, have started to be afraid just at the mere mention of something possibly passing into "terrorism" territory only because one of your elected represantives hinted about that then it means they've already won.