Thanks OP! Talk about hidden in plain sight. I gave up even checking for fare sales from ATL years ago because they almost never happen. I've been checking any number of repositioning points across the continent and here's a great deal right in my backyard.
I will have to say, I had a really difficult time getting one to ticket from ATL-PRG. But I finally found an itin that worked that didn't give me the dreaded "Oops! This fare just sold out!" message.