The U.S. Internal Revenue Service announces that, due to the late passage of the extension of the Bush tax cuts and other itemizations, up to 50 million Americans will not be able to file their 2010 tax returns until mid-February.
The National Transportation Safety Board of the United States concludes its investigation into the accident, which killed six and injured ten. It states design errors were the immediate cause, exacerbated by failures to take appropriate remedial action when cracks were discovered.
The United States deploys F-22 Raptor fighter jets to Romania's RoAF 86th Air Base, near the Black Sea, in a show of strength and cooperation against Russia. "The United States and Romania enjoy a very strong partnership," said Hans G. Klemm, the United States Ambassador to Romania.
The U.S. state of Utah declares pornography a "public health risk" in a move Governor of Utah Gary Herbert says is to "protect our families and our young people". The bill, signed by the governor, does not ban pornography in the state but does call for greater "efforts to prevent pornography exposure and addiction".
The United States Federal Trade Commission (FTC) files an administrative complaint challenging office-supplies giant Staples' proposed $6.3 billion acquisition of top rival Office Depot. The FTC said the deal would significantly reduce national competition in the market for office supplies sold to large business customers. The companies plan to contest the FTC decision.
Tornadoes touch down in midwestern and southern United States, including Washington County, Arkansas; Greater St. Louis, Sunset Hills, Missouri, Illinois and Oklahoma, with a few tornadoes in the early hours of January 1, 2011. A total 36 tornadoes touched down, resulting in the deaths of 9 people.
In the United States House of Representatives, Republicans introduce Resolution 1553, which expresses United States support for Israeli use of any necessary military force to eliminate any threat it believes Iran poses.