Don't know if the USA would set it up as an international law, but some countries already try something close to this.
French government enforced a law that looks a lot like this one. It's called HADOPI, I don't know how much it's been heard about in the rest of the world.
The goal was to set up an administrative authority that would reign over the ISP, ask them for information about traffic and shut down your internet access without any judiciary procedure. Just administrative.
It also created a new crime : not protecting your private network. So, if someone breaks into your wifi network then downloads something and get caught, you're guilty. Not only is your connection shut down, but you can't take another one and still have to pay for the first.
In case this happens, you have to prove you're not guilty by having previously installed a spy program on your computer. Said spy will be sold and probably windows only.
The funniest here is that while this law was repetedly refused by our Constitutionnal Council (before said council finally accepted), Europe declared that an access to Internet is a fundamental right, and as so cannot be taken away.
Also, another law, or an amendment, I'm not sure, was voted that said no one can be refused his right to access his email account.
Now, they'll have to explain us how you can access your mails without internet connection.
Needless, we're not happy with our government. At all. So far, I haven't met anyone supporting this law.
Also, I heard the United Kingdom had been talking about a similar but less "violent" law.