Keep in mind this is as much a money issue as a "security" issue. Every upgrade or new feature, whether it's ProVoice, ESK, etc., costs a lot of money per radio, and the bigger the system, the more money required. I have doubts that, with the tightening of criteria for Homeland Security grants plus less money overall, these upgrades will easily be made. There's a lot of legitimate competition for the same dollars, and items that were paid for in years past (such as radio systems) may be deemed to have "had their turn", and requests that had to wait will get the money this time around.