President Barack Obama has confidence in Secret Service director Mark Sullivan and believes he acted quickly to deal with a scandal in Colombia where agents were alleged to have engaged in misconduct involving prostitutes, White House spokesman Jay Carney said.
He added that the incident was being investigated and declined to speculate about conclusions that could be reached as a result of that probe.
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Temperatures will remain close to freezing.
The prime minister's announcement came as international leaders gather in Paris on the second anniversary of the climate change plan.
Prime Minister Theresa May said in October the Government will shift towards an organ donation system in England which presumes consent.