US officials say al-Qaeda had plans to hijack or sink oil tankers in order to prompt a spike in prices and trigger an economic crisis in the West.
The United States searched on Saturday for the culprits behind a plot to bomb Jewish targets in Chicago.
With a BP well spilling oil into the Gulf of Mexico for a fifth week and President Barack Obama under pressure to act, legal experts say it is only a matter of time before his administration begins a criminal investigation into the disaster.
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/ 10 February 2010
The second major snowstorm in less than a week slammed the US East Coast from Washington to New York on Tuesday, forcing the United Nations to close.
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/ 6 February 2010
BAE Systems will pay about $450-million in fines in the United States and Britain, settling long-running corruption investigations.
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/ 3 February 2010
The Nigerian man accused of trying to blow up a US airliner on Christmas Day has provided "useful, actionable" intelligence to US authorities.
US President Barack Obama is "not patient" and is demanding immediate changes in airline security, the top US military officer said on Wednesday.
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/ 10 November 2009
Intelligence agencies learned an Army psychiatrist contacted an Islamist sympathetic to al-Qaeda and that the information was relayed to authorities.
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/ 27 September 2009
The Obama administration is close to selecting a location on US soil to house some detainees from the American military prison at Guantánamo Bay.
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/ 19 September 2009
Seven former heads of the CIA urged President Barack Obama on Friday to end the probe into allegations of abuse of prisoners.