Most mass killers have one common trait – a propensity for domestic violence.
The shooter at the Texas church had beaten his first wife and hurt his infant stepson. This connection between mass shooters and domestic violence is the norm, not an exception.
Wildfire creates an orange glow in a view from a hilltop Oct. 13, 2017, in Geyserville, California.
AP Photo/Marcio Jose Sanchez
Wildfires in California have triggered a public health emergency. One threat is smoke inhalation: Some air readings have registered pollution levels comparable to bad air days in Beijing or Mumbai.
Cash-strapped Hartford is one of a number American cities that have missed out on the nation’s urban renaissance.
Jessica Hill/AP Photo
In the country's wealthiest cities, gentrification is a dirty word. But it's all relative – just ask Hartford and Columbus.
Activists protesting against the recently banned triple divorce.
AP Photo/Altaf Qadri
Muslim women in India struggle with a host of challenges, such as widespread poverty and lack of access to education. Arbitrary divorce was only one of many injustices.
Some of the original advocates for Medicare in the 1960s hoped to eventually extend it to everyone.
Bernie Sanders' single-payer health care plan is bound to be expensive and politically impossible. A simple expansion of Medicare offers a cheaper and more passable path to universal care.
Old West, as seen through 1967 Orange County eyes.
Orange County Archives
Knott's Berry Farm and others romanticize the state's past and influence visitors’ sense of history. But their ideology reflects mid-20th-century political conservatism more than settlers' reality.
Deleon Gambel, 14, fights the current from the overflow of Buffalo Bayou as he makes his way through floodwaters from Tropical Storm Harvey while checking on neighbors in his apartment complex in Houston, Sunday, Aug. 27, 2017.
AP Photo/LM Otero
The number of natural disasters around the world has doubled since 1980, raising serious questions about how to respond. Here's how game theory could help.
FirstNet could relieve emergency workers of having to carry multiple radios and other communications devices.
AP Photo/Ric Francis
A multibillion-dollar effort is just beginning to build an all-new nationwide wireless broadband network for emergency responders. How will it work, why do we need it and how will it last 25 years?
Decreased regulation has failed to reduce the growing administrative burden of health care.
GOP lawmakers say their bills to replace the Affordable Care Act would do a better job than the ACA of controlling rising health care costs, but 40 years of deregulation show it just won't work.
President Donald Trump speaks at the White House.
AP Photo/Alex Brandon
The rule of law can take on different meanings depending whom you ask and where you are – but in the US it pretty much means one thing.
A new study looks at the amount of television voters consumed, and whether this influenced their support for Donald Trump.
The skyline of Doha, Qatar.
Gregory Hawken Kramer
Qatar has used its wealth to adopt policies sometimes rivaling Saudi Arabia’s. Think, for example, of the popular Al-Jazeera. Now the Saudis seem determined to limit Qatari influence as much as possible.
Checking the power output of a photovoltaic concentrator array built by Martin Marietta, Inc., at Sandia National Laboratory in Albuquerque, New Mexico.
President Trump's budget reportedly will slash funding for clean energy research and development. An energy expert explains the importance of government support and spotlights some key opportunities.
When new discoveries are jealously guarded under lock and key, science suffers.
A century-old case of scientific fraud illustrates how hard it is to untangle the truth when access to new discoveries is limited.
Which links are most important in road and information networks?
When planning major infrastructure investments, it's important to know which road, freight and information networks are most important – and which proposals might make things worse, not better.
People watch Father John Misty perform at the 2015 Coachella Valley Music and Arts Festival in Indio, California.
Music festivals have been a boon to the music industry, but now we're starting to witness some pitfalls of commercial success: consolidation and creeping conformity.
Cruise missile strike against Syria on April 7, 2017.
U.S. Navy/via AP
Was this a one-off intervention – or a sign that Trump will undertake more of an effort to undermine the Assad regime?
The EU ruling could increase discrimination at work.
For many Muslim women, wearing the headscarf is an act of piety and a way of being. Forcing them to remove it can have devastating consequences.
Buddhist monks and family members of victims of the Fukushima tsunami and earthquake face the sea to pray on March 11, 2016 while mourning the victims of the March 11, 2011 disaster.
March 11 marks the anniversary of the Fukushima earthquake. Natural disasters here in the US also have wreaked havoc. There may be a way to improve response to these natural disasters.
Ben Carson laughs, Jan. 12, 2017.
AP Photo/Zach Gibson
Part of HUD's budget goes to improving American cities. Social media monitoring offers a novel way to judge if that money is being well spent.