Things get a little dangerous as we don our body armour and head out into the battlefield. How do explosives work and what can we do to protect against them? We take a sneak peek at AnUBIS, a device that uses donated human body parts to help to understand the injuries an explosion can cause, and we investigate bomb-proof materials that could also be used in sports. Plus, in the news, why antibiotics at an early age might make you fat, the comet with a cave inside, and why you shouldn't marry your cousin...