May 21, 2013 — A high water table and red clay that soaks up the moisture make dry basements an expensive and iffy proposition right in the heart of Tornado Alley.

May 21, 2013 — Sens. Tom Coburn and James Inhofe have become the faces of pushback on federal emergency spending. Now the deadly and devastating tornado in their home state has put them in an awkward position.

May 22, 2013 — It goes back to a single page in a report written decades ago by U.S. consultants, and funded by the U.S. State Department.

May 22, 2013 — Political unpredictability in the region hampers all kinds of businesses: from stone-cutters and shoemakers to IT. Business owners in the West Bank say Secretary of State John Kerry's commitment to remove barriers to commerce might go further than actual cash.

May 22, 2013 — NASA and Google have come together to buy a new kind of computer that the manufacturer says runs on the strange laws of quantum mechanics. But some physicists counter that the machine, known as the D-Wave Two, has never demonstrated a phenomenon known as "quantum entanglement."