that will do damage to a person right there. >> it is virtually impossible to stop inmates from making homemade weapons. i've seen shanks made out of toothbrushes, ink pens, hanging folders in file cabinets. >> they're not hard to come by. you want one, you can have one. >> our staff comes to work daily and face armed inmates. >> john, you say in there that it's virtually impossible to stop making weapons. i've been to a maximum security prison. i couldn't get a quarter past, you know, the guards when i walked in. how -- why is this happening? how does it happen? >> it's because that the things that they're making the weapons out of, they're sometimes allowed to have while they're around. and it's already inside the institution itself.