I would go with MBE I called them not long ago & asked them some questions.The lady(manager) told me that it is totally confidential & they are not allowed to release the name of any box holder,nor let anyone open any packages or mail under any circumstances.Plus it is easier to open a MBE under a false name or business.It just seems to me that it would be easier to get caught with a P.O. from the info & people I've talked to.The post office wants sometimes 2 forms of ID,usually just one but they require a valid Drivers liscense or passport usually.Sometimes it just depends on who it is thats opening it up for you.Really all post office employees make me fucking nervous as hell for some reason.
But im not involved in any illeagal activity of that sort so I im just trying to help you guys..