Two points. One: NFS's fundamental security flaws have been known for
quite some time. Two: your example is silly, because root could
also access USER's files by su'ing to USER.
-- Aaron M. Ucko (amu@mit.edu) | For Geek Code, PGP public key, and other info, finger amu@monk.mit.edu. | "Kids! Bringing about Armageddon can be dangerous. Do not attempt it in your home." -- T. Pratchett & N. Gaiman, _Good Omens_