I worked with a company that upgraded a mainframe cluster not located in the USA. The upgrade topped out a collective rating of that user's installed computing power allowance given for civilian purposes. So, to do the upgrade, US Export controls required the client to decommission some older nodes and that had to be witnessed by US Consular representatives walked through the whole process taking video and photographic evidence. And the agreed method of decommissioning was to haul these old nodes out in to a deserted area and run bulldozers over them in a pit. Not joking. Wish I kept some of the photos though.