Comment Lazy @$$ investigators (Score 2) 502
A warrant is not something that requires cooperation. It is legal permission for investigators to break-in to a certain place, search for and take listed things. So if this is justified, let them do it!
The warrant should allow particular investigators to break-into whichever servers listed, grep around and download listed items. Done. If they cannot, find 1337r agents. If you need keys, get warrants for physical access to machines.
These "compell" warrants are quite a stretch -- they compell MS to violate EU law, to certify what they turn over, and to never be sure they've fully complied (how could they know they got it all)?