The International Olympic Committee said it would examine any evidence of corruption, after one of its members was named in a BBC report targeting three FIFA officials.
A student armed with a gun was holding 23 children and a teacher hostage in a high school classroom in the small Wisconsin town of Marinette, police said.
Nearly 200 countries gathered under the UN flag and behind tight security for a fresh attempt to craft a treaty to roll back the threat of climate change.
Europe and the IMF finalised Ireland's bailout, warning creditors they will also share the burden of future rescues as Brussels fights market moves on Portugal and Spain.
North Korean artillery was heard Sunday on the frontline South Korean island attacked last week, though no shells landed on the island, South Korea's military said.
US authorities thwarted a plot to blow up a car bomb at a Christmas tree lighting ceremony in the western state of Oregon and arrested the suspected Somali-US bomber.
Tens of thousands of demonstrators are expected in Dublin to oppose the government's harsh austerity plan, aimed at slashing the country's budget deficit.
The rescue of three teenagers from the remote Pacific island of Tokelau, who survived on rainwater and a seagull while adrift for 50 days at sea, was hailed Friday as a "miracle".
President Lee Myung-bak decided Thursday to replace his defense minister accused of mishandling North Korea's deadly artillery attack earlier this week.