“Richard Reid, the so-called ‘shoe bomber’…was captured aboard American Airlines Flight 63 en route from Paris to Miami on December 22, 2001. …The FBI later confirmed that there were two TATP [triacetone triperoxide]-based IEDs [improvised explosive devices] hidden in his shoes, prompting airlines worldwide to force passengers to remove footwear as they passed through airport screening devices.”
– Peter Lance, Triple Cross, Page 440