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Text messages spreading false rumors helped spark postelection violence in 2007. This time, monitors will keep an eye on social media and will be in touch with government officials in a bid to prevent bloodshed.

It's not just the heat — it's the humidity. Health experts actually apply that principle to workers, soldiers and sportsmen who toil outside and in places that lack air conditioning. A study in Nature Climate Change says that global warming will noticeably reduce the amount of time people can spend working and playing safely outside.

The center-left was favored, but there was no clear winner as the ballots were counted. Silvio Berlusconi's center-right coalition was not expected to do well, but was leading in the upper house of Parliament.

The long-awaited BP trial opened Monday in New Orleans. The oil giant is in court to determine how much it should pay because of the massive 2010 Gulf of Mexico oil spill. Audie Cornish talks to Jeff Brady.

As digital technology continues to transform the way objects are manufactured, it's becoming more possible to produce an entire firearm at home. Amateur gunsmiths are now sharing the digital blueprints for making key parts of a gun online on a 3-D printer and one member of Congress has expressed concern about the implications of 3-D printed guns at airports and other public spaces.

The Supreme Court hears arguments Wednesday in a case challenging a Voting Rights Act provision that requires some states to receive federal approval for elections rule changes. Shelby County says the system is outdated, but some black officials argue it's still necessary to ensure diverse voices in government.

Several big retailers say the return of the full payroll tax is causing consumers to curtail spending, but so far the evidence is mostly anecdotal. Some analysts argue a variety of factors, and not any specific policy, contributed to slower growth in consumer spending in January.

The debate currently raging over guns goes beyond a disagreement over policy. Advocates on both sides literally disagree on the terms of the discussion — as in, the words they use to describe it. They know that the specific phrases they use tap into deeply held values in the people who hear them.

Twenty-eight states and the federal government have enacted laws that provide for automatic DNA collection from people at the time of their arrest. The question is whether it is unconstitutional to do that without a warrant, for the sole purpose of checking the DNA against a national crime scene database.

Natalie Stewart, best known as half of the British duo Floetry, discusses that group's breakup and her new solo album.