Rep. Lamar Smith (R) of Texas wants a special counsel to investigate whether Attorney General Eric Holder told Congress the truth about Operation Fast and Furious, a now-discredited gun-tracking program aimed at Mexico's drug lords.
Colorado earthquake: A magnitude 5.3 earthquake shook the state late Monday, with an epicenter about 180 miles south of Denver, Colorado.
Allegations that the Bureau of Alcohol, Tobacco, Firearms and Explosives allowed US arms to flow to Mexican cartels are now facing congressional scrutiny, including questions about whether that may have contributed to the deaths of a US law enforcement officer and numerous Mexicans.
Rep. Michele Bachmann, (R) Minnesota, joined by husband Marcus, left, family and friends, announces that she will end her campaign for president Wednesday, Jan. 4, 2012, in West Des Moines, Iowa.
Spain earthquake: a pair of deadly temblors hit southeast Spain on Wednesday. The initial Spain earthquake and subsequent temblor caused major damage in the town of Lorca.
A study of more than a century of global seismic records has prompted some scientists to say that major earthquakes have tended to occur in clusters. Others disagree.
8.9 earthquake: A series of large foreshocks preceded Japan's earthquake, the fifth largest ever recorded.
A magnitude 6.3 New Zealand earthquake destroyed local landmarks and killed 65, according to local reports. A nearby magnitude 7.0 earthquake in September 2010 killed none.
Scientists had thought the Haiti earthquake a year ago released stress on a well-known fault. It didn't. Instead, it revealed faults that scientists didn't know existed.
Verdant Power seeks license to build a plant with 30 underwater turbines in New York's East River. It would be the first of its kind in the US, expanding the nation's green energy resources.