John Kiriakou, who is accused of leaking names of other covert operatives to media, sentenced to 30 months in prison.
Eight Republican and Democratic senators unveil new immigration plan.
As shell-shocked residents attend a series of funerals, the focus is now shifting to a barrage of police investigations.
A new study shows how cities alter the weather for thousands of kilometers downwind.
President Hugo Chavez appears to be well enough to resume treatment for his extremely aggressive cancer, minister says.
Tens of thousands of Chavez supporters rally in Venezuela amid uncertainty over his health.
Debated US gun control plan won't do nothing for the assault weapons that are currently owned.
Crowd funding has the potential to shift the way entrepreneurs research, develop and market products.
The cautious Barack Obama is gone as the president delivers his second inauguration speech.
NASA's Mars mission has revealed that a Martian crater may have once held a groundwater-fed lake.
Business booms and people feel freer, but socialist benefits and bureaucracy are still in place.