Richard Johns, co-author of a long-censored technical paper on the Twin Towers’ destruction, and AE911Truth’s Ted Walter are this week’s guests on 9/11 Free Fall. They talk with host Andy Steele about the latest developments in the decade-long saga involving Johns’ paper, which he and co-author Tony Szamboti first submitted to the American Society of Civil Engineers’ (ASCE) Journal of Engineering Mechanics in 2011.