For my money Break Today was the high water mark of the whole series

They brought the setting forward and showed how Unknown Armies could movie beyond 1990s millenarianism while also providing an interesting on-ramp for new players that didn't rely on Delta Green/World of Darkness style top heavy metaplot conspiracies to hand out orders.

If 3e had actually got any setting books we could have that for the present era, but Atlas doesn't give a fuck about RPGs