Scott McLennan for Boston.com has posted the following "American Carnage" concert review from Saturday (August 14) night??s show in Lowell, MA.: "For a couple of bands that aren??t big on friendly gestures, Slayer and Megadeth did an exceptional job escorting fans down memory lane Saturday at the Tsongas Center. Slayer played all of its ???Seasons in the Abyss???? album and Megadeth unfurled ???Rust in Peace???? in its entirety, making the ???American Carnage???? tour a headbanger??s history lesson. ...In music, there are too few real deals left, and any tour with two together is bound to succeed."