https://www.bbc.co.uk/news/business-48842434 (sharing for the pics not the content) Pics in the (((article))) show face masks but not on all people being held. Perhaps stage 1 ('warm welcome') is test for Ebola - MUST WEAR face mask until 'cleared' from being 'carriers' through testing. stage 2 is the first pic - masks off and lying around 'waiting for your turn'- as is tradition with civilised people.  They are not victims for having to wait in line.  I think only 1 (?) outbreak is due to the U.S. holding sites being in top working order! True security, against the swarms of border hoppers.  The security is getting ever stronger as the wall is constructed.