Today marks the start of Privacy Week. It’s timely, given the reaction to Facebook’s Open Graph announcement a couple weeks ago.

As we become more dependent on digital interconnectedness to stay in the know, it’s important to consider the data trail we leave behind — and not just on social networks. Earlier this year, President Obama signed signed a one-year extension of the Patriot Act, a law that was written in response to the Sept. 11 attacks, but which critics say gives the federal government unprecedented surveillance authority over private citizens.

“Having information about other individuals is a very important way of having leverage over them,” says University of Chicago law professor Geoffrey R. Stone.

Watch the short film above. If you’re concerned about your privacy and want to take action, sign the Privacy Week petition to congress, and read the latest information from the Electronic Privacy Information Center (EPIC). If you’re specifically concerned about Facebook, follow these instructions to opt-out of instant personalization or these instructions to permanently delete your account.