Spc. Michael Speed is about to become one of the new sheriffs in town. So are Spcs. David Dillivan and Billy McCormick. So are nearly 200 more Army National Guard artillery soldiers from Tennessee who, this month, will join active Army military police forces a long way from their homes. Those citizen-soldiers from Tennessee's 2nd Battalion, 115th Field Artillery, have been reclassified as military police officers after four weeks of nonstop training here because, for the time being, the Army needs a lot more MPs than it needs artillery troops to help wage the global war against terrorism. That's why...