Surrounded by two major highways, the ship channel and a Valero Refinery, residents of this Southeast Houston community breathe in air polluted by a number of different contaminants
"There is a need to say, 'Ya basta,' " Luna says, "you know, enough is enough." A few years ago, Luna left Hollywood and returned to Mexico, where he became a political activist.
Albino Quiroz Sandoval left home to go shopping last year and never returned. A man has been arrested, but most crimes in Mexico go unpunished. More than 37,000 people have gone missing since 2007.
Hundreds of millions of beavers used to populate the West but were hunted to near extinction. Turns out, beavers are critical to healthy water ecosystems, so now there are efforts to bring them back.
A young cancer doctor uses social media to skewer what he sees as overblown claims for "precision medicine." That doesn't make him hugely popular at cancer research meetings.