Tennessee Army National Guard Spc. Michael Parson speaks with authority about two things that matter most to National Guard troops involved in the war against terrorism these days: serving in the Army's total force and the extent to which some civilian employers are supporting the troops. Parson has good reports on both accounts. He belongs to Company C, 2nd Battalion, 115th Field Artillery, that today completed a month of condensed military police training at this central Missouri post. Next stop is Hawaii, where Parson and about 100 other soldiers in that company will pull garrison duty for the next year....