First it was SOPA/PIPA, and now it's ACTA/TPP. You can get more info here, but the bottom line is that ACTA is a treaty rather than legislation, and as such nobody needs to vote on it. It was negotiated in secret to reduce the likelihood of public opposition, it reinforces the shakiest portions of previous flawed legislation, and amongst other things it treats generic medications as illegal.
You can visit KillACTA.org or use the below form to email officials, either with your opinion or the pre-filled form letter. This thing is ridiculous. I don't know if we stand a chance to stop it, but I'll do what I can.