Platos Cave, "NIST's Questionable Collapse Initiation Sequence", playlist at Platos Cave Youtube channel (28-29 June 2015)

An effective short video series assessing the explanations given by the US National Institute of Standards and Technology (NIST) for the collapse initiations of the Twin Towers on 9/11, using footage from presentations by key 9/11 researchers. (I am pleased to say the series includes excerpts from TMR interviews with Kevin Ryan and Tony Szamboti.)