"It is surplus, an amount of something left over when requirements have been met.   And in this circumstance, it is not in our possession."

 Ok so to be more accurate I could have said local law enforcement agencies typically will, when offered or available, purchase or obtain without cost "surplus" from the US Government with the exemption of "surplus" that is left in Afghanistan, or any other known reason or reasons for "surplus" items to not be available to said local law enforcement agencies.

 Even at that, I am aware of current Governments surplus in the millions of dollars here in the US.  I see no reason to believe the current Administration does not "believe" in reducing that supply through sale since that supply is for sale.