no they dont freaking do all that... i work in sample collection... and the only reason people give urine or poop samples is to identify any illness the person might be having... it sucks enough that we only have less than 8 people in the department... wut the hell makes you think we are going to look at a billion of recruit sample hair, blood and crap like that? the blood is to test yo ass for STD's if u havent figured that out yet...