No it can't, free versions of BSD don't have IBM adding in multiprocessing capability, so foreign governments don't use BSD for their supercomputers, they use Linux, even though BSD has been around longer. Upgrades to Linux by IBM and other US companies, which are given away for free, and are then used to power supercomputers for countries like Iran is the issue. Don't act concerned because we know you are not, you've only argued in favor of those transfers for at least a year now, and your obvious red herring of BSD has nothing to do with it.
A half-truth.
4.4BSD can't. However, the newest BSD derivatives (FreeBSD, Darwin, NetBSD, OpenBSD, Darwin/Mac OS X) have support, if only somewhat experimental in nature.
Keep in mind that there's a reason why the BSDs (incl. Mac OS X Server) are on the rise when it comes to the OS of choice for servers...