Adam Gadahn, Al-Qaeda Spokesman, April 7, 2010

“As you start to make your plans, you shouldn’t make the mistake of thinking that military bases are the only high-value targets in America and the West. On the contrary, there are countless other strategic places, institutions and installations which, by striking, the Muslim can do major damage to the Crusader West and further our global agenda and long-range strategic objectives… We must keep in mind how even apparently unsuccessful attacks on Western mass transportation systems can bring major cities to a halt, cost the enemy billions and send his corporations into bankruptcy.”“Adam Gadahn: “Al Qaeda’s American Voice,” Anti-Defamation League, accessed March 16, 2015, http://archive.adl.org/terrorism/profiles/adam_gadahn/words.html?m_flipmode=2.