This Week In The Future: Barbarians Duke It Out With Giant Rats

In the future, when the tiny rat has radioactively transformed into a man-sized beast, we'll don our armor and fight. Want to win this heroic Baarbarian illustration on a T-shirt? It's easy! 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 the envy of friends, coworkers and everyone else with eyes. (Those who...