There is strong evidence that the Assad regime in Syria is using chlorine gas -- commonly found in U.S. industrial operations -- as a chemical weapon against its own people.

"RALEIGH -- The 11th Circuit Court of Appeals in Atlanta has ruled that Marine veterans and their families cannot sue over groundwater contamination at Camp Lejeune."

"From 2004 to 2011, American and Iraqi troops repeatedly encountered, and at times were wounded by, chemical weapons that were hidden or abandoned years earlier."

"The Pentagon on Monday released a report asserting decisively that climate change poses an immediate threat to national security, with increased risks from terrorism, infectious disease, global poverty and food shortages. It also predicted rising demand for military disaster responses as extreme weather creates more global humanitarian crises."

"New US sanctions on Russia are the strongest yet against Russia. The point of new Russia sanctions on five major energy firms is to 'shut down' Russia's deepwater, shale, and Arctic exploration, according to one senior US official."

"In line with President Obama's strategy to 'systematically degrade, dismantle and defeat' the Islamic State of Iraq and Syria (ISIS), the Treasury Department said Wednesday that it plans to up its pressure on the terror group's oil sales."

"As Ukraine looks like a country teetering on the edge of war, there's an important factor to keep an eye on: The country's 15 nuclear reactors."

"As tensions mount and U.S. lawmakers push for stiffer sanctions on Russia for its role in the Ukraine crisis, oil giant ExxonMobil wants no part of it."

"GENEVA -- U.N.-mandated human rights investigators said Wednesday that they believed the Syrian government dropped the chemical agent chlorine on civilian areas on eight different occasions in April."

"Since the 2001 anthrax letter attacks that killed five people and raised the specter of bioterrorism in the United States, the number of high-level biosafety labs operated by governments, universities and others to study potentially lethal pathogens has been expanding rapidly. According to a 2013 report to Congress, the number of these labs grew by almost 10 percent, from 1,362 to 1,495, between 2008 and 2010 alone."