Little information is known about Crude MCHM, the chemical that leaked into West Virginia's Elk River and potentially contaminated the tap water of 300,000 residents.
Devyani Khobradage, the Indian official whose arrest led to new tension between the US and India, has left New York after being indicted on charges of visa fraud pertaining to wages for her housekeeper. There are some circumstances under which she could yet be prosecuted.
Gov. Chris Christie's George Washington Bridge scandal is not taking a toll, so far, on his political support among establishment Republicans or even moderates. But the 2016 presidential race is just ramping up.
A chemical spill in Charleston, W.Va., has compromised water supplies and prompted the governor to declare a state of emergency in nine counties.