I think it's just what they do; this has been known in that area for a few weeks.
Hmmn. Bringing in body bags and setting up detention centers is 'just what they do' in preparation for protesting?
A State of Emergency granting extra powers to local law enforcement was announced by the State Governor on 7 May, and while nowhere has yet been "set aside" for the protesters to protest (a quaint notion in itself), a playing-field over on the mainland has been fenced for use as a detention centre.
Just following the good old Boy Scout Motto.....
BE PREPARED
Exactly.