The rottie in question on the poilce/car programme - dont blame them for being careful - if i remember rightly at end of programme they informed us the rottie was put to sleep after biting kennel staff - so fair play to the police i say.
I know its easy to point the finger and blame the breed.
But caution should always be exercised when handling dogs - ive seen the sweetest dog turn on a sixpence, they always have their reasons but people will get bitten if care isnt taken. Whether the 'care' they took when dealing with the dogs in the link was OTT we dont know - its just all very very sad.