Each year, on or around Thomas Jefferson’s April 13 birthday, The Thomas Jefferson Center for the Protection of Free Expression “awards” the individuals and organizations who put in a concerted effort to abridge free speech in the previous year. The 2011 “winners” of these awards — called the Jefferson Muzzles — were recently announced.

Who can we thank for impeding free speech during 2010? The dubious honorees included no less than the Obama Administration and BP “for restricting media access to the Gulf oil spill,” the TSA “for having a young man arrested for stripping off much of his clothing to display the text of the Fourth Amendment,” and more. You can check out the full list of recipients here.

The Jefferson Muzzles serve as a reminder that free expression isn’t always as safe as we think it is.