We go under cover to expose a black market vaping operation. Scientists reveal the poisons that unsuspecting people are breathing in. And a city that was a battleground for civil rights has its first black mayor. This is the cbs evening news with Norah Odonnell. Odonnell good evening. And thank you so much for joining us. This is our western edition. At this hour, u. S. Officials tell cbs news that military operations to defeat isis are effectively paused. Thats because Turkish Forces are bombarding territory held by americas kurdish allies in northern syria. Today, President Trump called the turkish offensive a bad idea, but just days ago it was his decision to pull back 50 u. S. Troops that allowed turkey to attack the kurds, who have led the fight against isis. Republican senator lindsey hets tonight from northern iraq, about 100 miles from the derian border. Reporter phase one of the turkish onslaught has been even more intense and widespread than many feared. Americas steadfast pa