On Sept 20 in Va Beach , while parked at the city maintenance lot adjacent to Oceana Navy Airstation  watching the FA 18 Super Hornet demo practice, I happened to catch a public service message loop on 1630 khz.
It's a very short loop, mentioning Newport News shipyard.  This sounds to be  DHS influenced content, due to the tropes used by them , such as " if you see something , say something" , " remain vigilant on and off the job"  " although no terrorist, elevated alert" .   I could not hear it at any other location once I left.   This is directed to shipyard workers in Newport News or Norfolk Air Station?,  25_30 miles from the receiving location of the intersection of Oceana Blvd and First Colonial rd , which is across the street from " Giant Killer" HF  some of you may be familiar with.
I could not find any references in FCC TIS  that would identify it.   There were no call letters , just the short loop.
I will record it next time .  Maybe someone can find this stations call letters and location .  It was on the weak side , signal strength was not strong in the area of NAS Oceana.  I gave up searching for this.  Maybe one of you can locate this in FCc.