This is just pure bull shit, these are open air memorials! The administration had them reinstall the barracks following the 1st wave of vets hit the memorial Monday night!
New wave of WWII veterans move barricades to access DC memorial
Edit: The Obama Administration has decided to block access to public memorials on the National Mall as a result of the government shutdown. Like its decision to end White House tours when the sequester cuts took effect, there is no rational reason for this. The Park Police, nominally in charge of monitoring these spaces, isn't even effected by the shutdown. Shutting off access to these sites is gratuitous and petulant.