The painstaking work of art restoration is often done in a studio or a lab, removing decades of dulling dirt and dust, or repairing works that has been damaged, always with the aim of helping art – meant to stand the test of time – keep time at bay. Lee Cowan reports. Source

The painstaking work of art restorers, who remove decades of dulling dirt and dust or repair damaged works, is meant to help art stand the test of time by keeping time at bay Source

One of the most respected and successful chroniclers of avian life has produced bestselling field guides for birdwatchers, covering more than 800 species Source

Heather Hardy and Amanda Serrano are exemplars of a sport that still receives much less recognition than men’s boxing, and where prizefighting comes without much of a prize Source

On November 17, 1800, the United States Congress met for the very first time in the as-yet-unfinished Capitol building in Washington, D.C. Jane Pauley reports. Source

In this web exclusive, illustrator David Sibley, famed for the bestselling “Sibley Guide to Birds,” talks with correspondent Rita Braver about his youthful interest in bird-watching, and how being the son of a noted ornithologist, Yale professor Fred Sibley, led to his career. Source

What lies within the heart of a secret agent, and how would he convince others to betray their countries for the benefit of his own? In this web exclusive, author John le Carré reads a passage from his latest novel, “Agent Running in the Field,” to elucidate the motives and morals of secretive figures in the intelligence world. Source

Access to porn has never been easier, but teens need help understanding how real-life relationships are different Source

On this “Face the Nation” broadcast, we sit down with House Speaker Nancy Pelosi to discuss Democrats’ strategy in the impeachment probe into Trump. We learn more about the impeachment inquiry timeline with Rep.s Jim Jordan and Mike Quigley. We also dive into the 2020 campaign with CBS News’ director of Elections and Surveys Anthony Salvanto. Source

Former Massachusetts Governor Deval Patrick officially entered the 2020 Democratic presidential race on Thursday. His announcement comes less than three months before primary voting begins. CBS News political correspondent Ed O’Keefe joined CBSN to discuss. Source