• Taliban chief Mohammed Omar says he's open to peace negotiations.

• An armed "Restore the Constitution" rally gathers today in Fort Hunt National Park; an unarmed "Second Amendment March" will take place at the same time on the National Mall.

Pew poll: "By almost every conceivable measure Americans are less positive and more critical of government."

• Red Shirts face Thai troops in a Bangkok business district.

• Wall Street reforms that Goldman Sachs could love.

• The cloud of ash as a black swan.