This Week in the Future, April 11-15, 2011

Brazilian police are surveilling you. Big Brother is watching you breathe. Hoteliers are tracking you through those towels you stole. And you’re keeping an eye on the zebras. At least, that’s the message we’re getting from this week’s Baarbarian illustration–an illustration you might win on a free t-shirt.

The rules: Follow us on Twitter (we’re @PopSci) and retweet our This Week in the Future tweet. One of those lucky retweeters will be chosen to receive a custom t-shirt with this week’s Baarbarian illustration on it, thus making the winner entirely too cool for their school, or place of business, or couch. (Those who would rather just buy the t-shirt can do that here.) The stories pictured therein:

And don’t forget to check out our other favorite stories of the week: