Here's the skinny. AT&T became evasive when I asked them the current state of their links and DNS servers. They grudgingly admitted that one of the backbone hi-speed servers went down and they had to reroute traffic a little. I affected some URLs but not others. I found four more of my sites (ones I don't use that much) that were slow or timed out.
I did a total system restart on my uVerse modem and when it came back, Everything was a lot faster -- including this site. I ended up with a completely new IPV6 subnet address address as well as a new "normal" IPV4 address. Apparently, they weren't kidding about a server going down. This clears the DMS cache and reloads a fresh set.
I hope it stays that way.
Bill