First it was mysterious craters appearing in Siberia — possibly the result of the Earth belching methane as permafrost thaws and collapses.

Then scientists observed methane gas bubbling to the surface from the sea floor in the Arctic Ocean, where for eons it lay trapped in a flammable slush. The researchers who discovered the plumes — a joint team of Americans, Swedes and Russians on an expedition called the ... Read more »

In it, he talks about the events leading up to the Gulf of Tonkin Resolution, which was signed into law 40 years ago this week. The resolution — created and adopted in response to two altercations that reportedly took place between US and North Vietnamese warships on Aug. 2 and 4, 1964 — authorized President Johnson to escalate the war in Vietnam.

In his speech, Bill references a trove of declassified documents that th ... Read more »