"As Ukraine's civil war raged, a few mouse clicks at three local power companies set in motion the covert intrusion. It was the first successful attempt at planting a bug, then disabling an electric grid serving hundreds of thousands of people."

"A federal appeals court ruled on Friday that the US Navy was wrongly allowed to use sonar in the nation’s oceans that could harm whales and other marine life."

"The Federal Select Agent Program, which oversees dangerous substances such as anthrax and bird flu in federal, academic and private labs, reported 199 incidents in which lab workers were potentially exposed to infectious or toxic agents in 2015, though there were no losses of select agents."

"SALT LAKE CITY — A Stockton man described by prosecutors as the "commander of a citizen militia group" was indicted Thursday after allegedly trying to blow up a Bureau of Land Management cabin in Arizona."

"U.S. EPA has issued its first-ever guidance on contamination in drinking water in the wake of a nuclear disaster, 'dirty bomb' or other radiological accident, drawing criticism from public health and environmental groups."

"The environment has long been a factor in violent conflict in South Sudan, especially with respect to control over oil."

"The quest for answers for thousands of veterans sickened -- in some cases terminally -- by contaminated water at Camp Lejuene has been stymied by a federal agency that refuses to hand over key documents, attorneys from Yale Law School charged Wednesday."

"Gustavo Castro was the sole witness to the murder on March 3 of Honduran activist Berta Cáceres. ... Last week he spoke by phone to The Intercept about the night of the murder and the reasons why environmental activism in Latin America is so dangerous."

"Just as fears of nuclear terrorism are rising, U.S. President Barack Obama's drive to lock down vulnerable atomic materials worldwide seems to have lost momentum and could slow further."