It has been an extraordinary three weeks in the history of the American penal system, perhaps one of the darkest on record. In four states, from the Atlantic to the Mississippi, from the Gulf of Mexico to the Great Lakes, the systemic abuse and neglect of inmates, and especially mentally ill inmates, has been investigated, chronicled and disclosed in grim detail to the world by lawyers, government investigators and one federal judge.
The conclusions are inescapable: In our zeal to dehumanize criminals we have allowed our prisons to become medieval places of unspeakable cruelty so far beyond constitutional norms that they are barely recognizable.
Scientists have discovered more about the role of an important brain protein which is instrumental in translating learning into long-term memories.
Silicon Valley sparks the imagination. Its wealth of tech jobs, flashy startups and new media goliaths seems to point toward a better future, beyond post-industrial doldrums and slack labor markets. Work on Google’s idyllic Mountain View campus hardly looks like work at all. 
Clashes between protesters and militias aligned with the military in Libya's eastern city of Benghazi left 27 people killed and dozens wounded, a health official said Sunday.
Edward Snowden, a 29-year-old former undercover CIA employee, unmasked himself Sunday as the principal source of recent Washington Post and Guardian disclosures about top-secret National Security Agency programs.
Opportunity has made one of its greatest scientific discoveries so far. Clay minerals in a rock called Esperance clearly indicate that neutral water flowed across the rock some time in the first billion years of its existence.
