The US government says the Central Intelligence Agency (CIA) has foiled a plot by an al-Qaeda-linked group in Yemen to bomb an aeroplane going to America.br br The suspected attack was apparently scheduled to take place around the one-year anniversary of Osama bin Laden's death.br br It allegedly involved a more sophisticated version of the underwear bomb which failed to detonate over Detroit in 2009.br br Al Jazeera's John Terrett has the latest from Washington, DC.