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IRAN NUCLEAR TALKS-OBAMA

WASHINGTON — President Barack Obama is casting the Iran talks as part of a broader foreign policy doctrine that sees American power as a safeguard that gives him the ability to take calculated risks.

UNITED STATES-ASIA

WASHINGTON — At a time of crisis across the Middle East and beyond, the Obama administration is trying to keep its focus on a widely advertised shift to Asia. Defense Secretary Ash Carter will visit Japan and South Korea this week, part of a series of planned trips to the region during his first year as Pentagon chief.

FRATERNITY-ROLLING STONE

RICHMOND, Virginia — Rolling Stone magazine has apologized and officially retracted its discredited article about an alleged gang rape at the University of Virginia, and an independent review said the article may cast doubt on future rape accusations.

MEXICO-OIL PLATFORM FIRE

MEXICO CITY — Mexico's state-run oil company continues to search for three missing workers from a platform fireball that killed four others, while beginning to restore production at the damaged Gulf of Mexico facility, officials said. AP Photos.

MEXICO-GUNS FOR PEACE

MONTERREY, Mexico — Replicas of a sculpture of a knotted pistol that was designed in honor of the late musician John Lennon are being displayed this month in Monterrey, a northern industrial city that knows about gun violence. AP Photos, Video.