Help please

In an airport bookstore a few years ago I read over a book about a meeting between the most prominent physicists of the WWII era. It included Einstein, Oppenheimer, Bohr, and others. If I remember correctly, it was more of a recounting than anything else. I've always regretted not grabbing it that day and the Oppenheimer movie has me searching for it again. Any history buffs have any idea what I'm referring to here?

Posted this in OT and, along with suggestions to ask here, "The Making of the Atomic Bomb" was mentioned. I found older cover designs and think this may be it. Any help would be appreciated.