Disarmed because they will be escorting the President through the streets tonight?
https://www.breitbart.com/politics/2020/06/06/defense-secretary-mark-esper-orders-national-guard-in-d-c-to-disarm-wear-soft-caps-instead-of-helmets/
its the view i can construct that assimilates all or most of the related news the last few days.
the Secret Service snipers crowding into buildings that don't have a line of sight to the white house was a tell I think.