How politically effective is terrorism?

Why do some militant groups continue to use terrorism when it's politically ineffective, even counterproductive? The answer lies in their leadership deficits, according to Max Abrahms, a terrorism theorist and newly appointed ...

British astronaut to run a marathon in space

A British astronaut will attempt to run a digital version of the London Marathon in space, as part of his 173-day mission to the International Space Station.

3Qs: Boston shows compassion, resiliency in face of tragedy

Twin bombings at the Boston Marathon on Monday afternoon killed three spectators and left scores more injured. In the last 24 hours, news agencies have reported that authorities believe security video footage shows a potential ...

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