Electronic Pen

Marina Harss A celebrated Russian choreographer is charting a stylish new course for American Ballet Theatre.

• Barry Schwabsky: Fever Charts--On Jack Tworkov

Robert S. Eshelman Climate change groups occupy a central place among the ongoing G-20 protests in Pittsburgh.

• Police Harassment Greets G-20 Protests

Robert Scheer President Obama should follow the model of the incredibly successful Reagan revolution and heed the political base that made his presidency possible.

Barbara Crossette This week's UN General Assembly meeting will be memorable for Obama's precedent-setting level of involvement.

• Unesco on the Brink Again

Robert Dreyfuss Obama seems to be hesitant to embrace Gen. McChrystal's request for more troops in Afghanistan. Does he know it's a quagmire?

• Ann Jones: Meet the Afghan Army