I don't really believe this.
I think the Red Cross has asked for a certain level of safety assurance, and it can't be given, and the Red Cross doesn't want to admit that's what's keep them out.
The Salvation Army is in NO, why not the Red Cross.
The Salvation Army still approximates true charity. The give graciously without anticipation of how the grace is used.
The Red Cross is a secular, pagan, counterfeit to charity. It is probably better described as a 'not-for-profit' (as opposed to non-profit) organization. In all the situations I've been exposed to the Red Cross, they mandate control of all amenities in the area before they offer assistance and require those receiving benefits sign over any rights to other assistance other than Red Cross before they profide their assistance.
If they had the power, they would put in jail if you weren't grateful to them after they took your last tube of toothpaste and bottle of water before they even consider helping the needy. Red Cross is a man-made charity without grace.