Nearly 700 presidential hopefuls have thrown their names into the ring for Iran's June 14 presidential elections. But two last-minute entrants have altered the shape of the already-chaotic race: a former president once dismissed as a has-been and Iran's chief nuclear negotiator.
By the end of the century, the birthplace of America may be underwater.
The first successful English colony in America was at Jamestown, Va., a swampy island in the Chesapeake Bay. The colony endured for almost a century, and remnants of the place still exist. You can go there and see the ruins. You can walk where Capt. John Smith and Pocahontas walked. But Jamestown is now threatened by rising sea levels that scientists say could submerge the island by century's end.