"Mistakes were made, and one narrative too readily embraced, in coverage of the blast. Meanwhile, The Dallas Morning News excelled."

Oil-and-chemical billionaire David Koch lobbies hard to influence U.S. politics and environment and energy policy. Did his money influence the kind of coverage presented on public television?

"Top water decision-makers from seven Western states plan to join conservation groups and Indian tribes in San Diego on Tuesday to begin hammering out rules for squeezing every useable drop from the overtaxed Colorado River."

"Food companies big and small are struggling to replace genetically modified ingredients with conventional ones."

"MOSS LANDING, Calif. — With piles of fresh strawberries beckoning consumers at markets and stores this season, an alliance of a major retailer, fruit growers and farm workers has begun a program to promote healthy produce and improve working conditions."

"While Sam Spitz's friends were loading up on pizza for lunch, the Whitney Young High School sophomore opted for a chicken Caesar salad."

"Some fruits, like apples, you can find anywhere. But others have gotten a little bit lost in today's global food business."

"President Obama’s conciliatory gesture toward the press this week — a review of Justice Department investigations involving journalists — struck some national security reporters as closing the door after the sources have already bolted."

"RESTON, Virginia -- Aquifers across the United States are being drawn down at an increasing pace, finds a new study released today by the U.S. Geological Survey."

"Snap on the lights at Janet Brown's North Philadelphia house and see the roaches scatter."