Currently, the preferred target for blood pressure is 140 below or less, but a new study suggests that may be wrong. CBS News chief medical correspondent Dr. Jon LaPook explains. Source

Many of the first responders who worked in the ruins of the World Trade Center developed serious illnesses following 9/11. A federal program aimed at helping those affected is about to lose its funding. CBS News chief medical correspondent Dr. Jon LaPook reports. Source

From New York, to Washington, to Shanksville, Pennsylvania and beyond, the country took time Friday to mark the 14 years since the 9/11 attacks on America. CBS News correspondent Jim Axelrod reports. Source

Watch Gary Clark, Jr.’s full performance this Saturday on “CBS This Morning: Saturday.” Source

Andy Warhol did not worry about fighting misconceptions; he preferred to quietly change art. The pop art pioneer used common household items and famous faces. But a new book reveals another side captured through the lens of his Polaroid camera. Anthony Mason reports on his visual diary that holds more than 700 Polaroids. Source

On Thursday night’s “Late Show with Stephen Colbert,” Vice President Joe Biden spoke emotionally about the loss of his son Beau. It was his first TV interview since Beau’s death in May. Biden also discussed his potential run for presidency. Source

Nick Dietz compiles some of the latest and greatest viral videos, including a pug playing the drums to Metallica’s “Enter Sandman” and a mash-up of President Obama clips that make the Commander-In-Chief sing “Can’t Feel My Face” by The Weeknd. To see these videos in their entirety, click HERE. Source

Multiple shootings along a major highway near Phoenix have residents on edge. Former ATF Agent Matt Horace has analysis for CBSN. Source

New information shows how close British Airways Flight 2276 came to disaster in Las Vegas. The plane aborted its takeoff Tuesday when its left engine started burning. All 170 people on board managed to get out. Mireya Villarreal reports from Las Vegas. Source

CBS News senior security contributor and former CIA deputy director Michael Morell joins “CBS This Morning” to discuss the allegations that senior officials at U.S. Centcom have been altering intelligence on ISIS. Source