Is 9/11 still Relevant? Yes it is...and here's why...

Published: April 3, 2012, 6 p.m.

The Hunt For KSM:   The definitive account of the decade-long pursuit and capture of Khalid Sheikh Mohammed, the terrorist mastermind of 9/11. (Written by Terry McDermott and Josh Meyer) Description Only minutes after United 175 plowed into the World Trade Center's South Tower, people in positions of power correctly suspected who was behind the assault: Osama bin Laden and Al Qaeda. But it would be 18 months after September 11 before investigators would capture the actual mastermind of the attacks, the man behind bin Laden himself.