Republican presidential front runner Mitt Romney reached for his second straight victory Saturday in quiet Nevada caucuses, a contest that Newt Gingrich and the rest of his rivals conceded in advance.

ATHENS (Reuters) - Greece has just one day left to strike a deal with impatient lenders and reluctant political party leaders on a 130 billion rescue plan before the country is pushed towards a chaotic default, its finance minister warned on Saturday. Athens has wrangled without success for weeks with lenders and private bondholders on the bailout package and a bond swap plan, putting itself dangerously close to bankruptcy as 14.5 billion euros of debt falls due in mid-March. ...

Dozens of U.S. Park Police officers in riot gear and on horseback converged before dawn Saturday on one of the nation's last remaining Occupy sites, with police clearing away tents they said were banned under park rules.

Now that the federal government has closed its investigation of Lance Armstrong, some legal experts are wondering whether the effort to prosecute superstar athletes over doping claims is worth it.

WASHINGTON (Reuters) - Police removed bedding and most tents on Saturday at an "Occupy" protest site just blocks from the White House, enforcing a no-camping rule at a public square that has housed protesters for months. Dozens of officers sealed off McPherson Square and moved in before dawn to enforce the no-camping regulation. Demonstrators have been in the square since early October to target the growing income gap, corporate greed and what they see as an unfair tax structure favoring the richest Americans. ...

When Dorothy Twinney first saw a Race for the Cure walk for breast cancer — "a sea of pink" traveling through her hometown of Plymouth, Mich. — she was so moved she sat in her car and wept.

LAS VEGAS (Reuters) - With a huge lead in polls, Republican front-runner Mitt Romney appeared poised for an easy win in Nevada on Saturday that would put him in firm command of the party's see-sawing presidential nominating race. A Nevada victory would be Romney's second win in a row and his third in the first five contests in the state-by-state battle to find a Republican challenger to President Barack Obama in November's general election. ...

MUNICH (Reuters) - Defense Secretary Leon Panetta reassured European allies on Saturday that Washington remains committed to their security despite an austerity drive, as NATO pushed for new ways for alliance members to maintain capabilities at lower cost. The declarations came amid declining defense budgets and growing U.S. discontent over Europe's low spending and diminishing capabilities, which add to the United States' defense burden. Panetta said the U.S. ...

NEW YORK (Reuters) - Among the slick, million-dollar ads for the likes of Pepsi and Honda during the Super Bowl this Sunday, viewers in Washington will see a far more modest spot. New York Mayor Michael Bloomberg and Boston Mayor Thomas Menino will be sitting on a couch touting an issue most politicians avoid like the plague: gun control. The two mayors, whose local teams face off in the big game, are making the pitch for Mayors Against Illegal Guns (MAIG), the organization they co-founded in 2006. ...