NEW DELHI — When police in the north Indian state of Punjab announced the arrest of a grandfather for allegedly selling his infant grandson on Facebook, the news immediately went viral. But the real story is hidden behind the headline: The buying and selling of children is shockingly commonplace in India.

SEOUL — This week, a famous K-pop star in South Korea got all teary-eyed on television, talking about the 11 years she spent preparing for her career. But it wasn't a misty-eyed nostalgia that overcame Lee Hwan Hee, otherwise known as Fwaney, a former trainee from the South Korean girls group Girls' Generation. Rather, it was remembering the long hours and grueling rehearsals that filled her adolescent years.