In his address to the nation on Tuesday, U.S. President Barack Obama laid out a strategy he says will turn the tides in the faltering Afghan war effort. Five experts analyze his approach.

Four experts debate whether Obama’s immigration reform plan, including an expanded path to legalization, would help or harm U.S. workers and economic growth.  

Upcoming negotiations are shadowed by Iran’s increasing uranium enrichment capabilities. Four nonproliferation experts provide a path for resolving the intensifying nuclear dispute.

Experts forecast the five most consequential trends in 2012, following a year in which the global economy struggled amid high unemployment and mounting debt crises.

Violence and unrest following Iran’s contested presidential vote on June 12 have raised new questions about the regime’s long-term stability and prospects for U.S.-Iran rapprochement. Four experts ad…