TOP WORLD STORIES FROM CNN

• Obama pledges to stop an Iranian nuclear weapon
• Ammo dump explodes in Congo, killing 60
• Putin poised to retake Russian presidency | Election Q&A
• U.S. Navy rescues Iranian in capsized boat
• Iran leader consolidates power, vote results suggest
• Iran: What the elections mean | What's real, what's bluster?
• 900-year-old saint's heart vanishes from cathedral
• Chavez says he's getting new cancer treatment
• Rescuers search for survivors after train crash kills 15 in Poland