I am by no means siding with Amazon - check my post history. But as far as I know, there exist state and federal laws covering this. Even in my podunk state, law requires an uninterrupted 15 minute break per 4 hours worked, and even guides when that time must be allocated. Anything over 6 hours must be given an unpaid 30 minute meal period. Not perfect, but we aren't pissing in bottles.