I have heard the same. Thae UPS has the same standards as USPS.. They need a warrant to open any mail, etc. but when it comes to Fedex, they will hand the trucks over to undercover agents when asked to do a controlled delivery, no warrant, nothing.. So,USPS is obviously the safest, but from what I've heard UPS has the same standards.. But stay the hell away from FEDEX, lol..