Alex Beam's portrayal of architect truthers" is yet another disappointing example of a journalist resorting to ad hominem attacks and avoiding the facts when discussing the destruction of the three World Trade Center skyscrapers on Sept. 11, 2001 (The 'truthers' and 9/11). Sadly, not one sentence of Beam's column examines the evidence for or against the controlled demolition of the Twin Towers and WTC Building 7. Instead, he devotes 600 words to revealing his own ill-founded bias. Noting that some Americans think that what happened that day hasn't "been fully explained," he declares, "I don't agree," but gives no evidence-based reason for disagreeing. As building professionals, we at Architects & Engineers for 9/11 Truth try not to let personal feelings interfere with investigating the three worst structural failures in modern history. Nearly 2,400 architects and engineers, not including the 109 who signed our petition at the recent annual trade show ABX, have joined us because we stick to science. The physical evidence shows that scattered office fires could not have caused the 47-story WTC 7 to collapse symmetrically into its footprint. The evidence also shows that the twin towers were not leveled by the airplane impacts and ensuing fires. The implications are indeed far-reaching, and that is why we urge people to study all the evidence before reaching a conclusion.