Al Qaeda leader Ayman al-Zawahri urged small-scale attacks inside the United States to "bleed America economically", adding he hoped eventually to see a more significant strike.
http://news.yahoo.com/al-qaeda-calls-attacks-inside-united-states-055757870.html
“Down on the Boardwalk.....”
Al Qaeda Chief Urges Lone Attacks to Bleed US Dry
Ayman al-Zawahrir has called for a wave of lone-wolf attacks on the United States in a bid to weaken and bleed the US economy.
http://www.israelnationalnews.com/News/News.aspx/172025#.Uju1LYznZet