Actually BTC is being treated as a "commodity" rather than a "currency" and the U.S government will only care about a tax evasion, and money laundering therefore you don't do that don't worry about your money.
About PayPal, it will ban accounts that have anythings to do with Bitcoins, for now at least.
Please stop spreading FUD.
Paypal doesn't ban account which deal with bitcoins, They can't tell which payment is made for bitcoins and which for pizza.
The problem with PP is that many people fill a dispute after they send you the money and because of PP policies in 99% of the cases they get the money back , along with the bitcoins , and you end up with nothing.
If you have somebody you can trust that sells/buys with PP , there is no problem.
I've bought bitcoins for PP with no problem.