CBS News Portfolio American teaching in Sudan was told he was on his own amid violence, mom says: "Sick to my stomach" Singer Hayley Kiyoko brings drag queens on stage, defying Tennessee law TikTok user tours strangers' apartments and asks about their rent Barack Obama says gun ownership has become a growing "ideological" and "partisan" issue Former Titan submersible passenger describes experience on now-missing OceanGate sub: "Comfortable, but not luxurious" Can air quality affect skin health? A dermatologist explains as more Canadian wildfire smoke hits the U.S. Rita Moreno recounts attending the March on Washington 60 years ago: "I came home a completely different person" "Survivor" host Jeff Probst previews season 45 and reveals what makes a great player