I came through Miami a few weeks back on BA connecting to AA. We were herded into a separate CBP section to the main section. There was no machines for anything other than GE so all manual processing. It then lead to a separate baggage zone and no connections zone. I had to exit to the street and go upstairs to departures.This area all looked brand new

was a little surprised as last time I went through Miami I went through the main CBP section and then used the handy connections security...