shot at the marine who stepped on it. since there are now more foot patrols in afghanistan, that debris is tearing in to the legs of american troops. and with that, something we don t talk about as much for several reasons is the dangers. reporter: u.s. military officials already feel confident about the silk shorts because those have been quood by the brits in com bats. of course companies have been testing their own versions, but the army will need to run its own before committing millions of dollars to mass protection. i scrambled to gets a much testing as i can and have soldiers wearing different products and giving feedback. so some of these versions are bulletproof, some not. the version that the u.s. military is looking at, though, also contains some antibacterial qualities which means it could help cut down on infections chen soldiers are wounded. you mentioned that the brits