This will be the first visit for the POTUS since Dallas moved to the NTIRN system. Good chance to get some loggings of the active talkgroups, both secure and non secure. Might even find a new one or two. Pay special attention to the RIDs anything that doesn't begin with a 7 is likely from an outside agency, state or federal. For the aviation listeners, the Air Force 1 hand offs on ATC are very brief, if you are distracted for 10 seconds you could miss it. I expect the first handoff to be in the ZFW (Fort Worth ARTCC (ZFW) is an FAA enroute center) high altitude sectors to the NE depending on the route. Also DPD Air 1 will change their Callsign to "Huntsman" once the feds climb on board.