Not so much unsuccessful as unnecessary, the An Omen EP appeared in late 2012 less than six months before Welcome Oblivion, the first (and so far only) full-length How To Destroy Angels album. Too late to function as a stopgap, the EP more or less exists as promotional material for Welcome Oblivion, which also sports the lion’s share of the EP’s material. The two songs unique to the EP — “The Sleep Of Reason Produces Monsters,” and “Speaking In Tongues” — are good, but overshadowed by other material. There are NIN singles and remix albums with much more interesting material than those two tracks put together.