The heavy virulence with which Chimaira explodes on their second full-length is truly impressive. As hands-down contenders to take metalcore into the post-nü-metal mainstream (would that be über-nü-metal?), the group jettisons much of their hardcore baggage in favor of a crushingly streamlined attack that unabashedly sets all guns on kill. From the rumbling attack of "Cleansation" and the title track through the rest of "Impossibility's" dozen songs, it's a true sign of metal's resurgence that an album this brutal would be accepted so heartily among record buyers. While some of the lyrics (namely those of "Pure Hatred" and "Stigmurder") are a little embarrassing, the overall effect here is absolutely overpowering.