Why was the Metro filled with pantsless riders on Sunday?
Sunday marked this year's No Pants Subway Ride, an annual event that was started by comedy troupe Improv Everywhere in New York City in 2002 and has since gone global. Participants traveled bare-legged between the Metro Center, Chinatown and L'Enfant stations, though the event's Facebook page urged riders to wear nothing more revealing than a bikini bottom or Speedo. "The point of the day is not to 'protest pants,' " the page reads. "It is to enjoy the hilarity that ensues."
How can Google searches predict flu trends?
If Google is to be believed, the United States is in the mist of an "intense" flu season. The search engine giant measures how many people search for flu-related topics and then compares them to traditional measures of flu frequency -- the trend is close enough that Google's results have been published in the journal Nature. The Centers for Disease Control, meanwhile, have deemed it a "moderately severe" flu season. The proportion of people seeing their doctor for flu-like activity climbed to 5.6 percent earlier this month, according to the CDC.
What new state law caused a California pornography giant to file a lawsuit?
Pornography producer Vivid Entertainment is suing Los Angeles County over Measure B, a law requiring all performers in the porn industry to wear condoms when shooting films. Measure B was passed by referendum on the county's November ballot. Vivid claims that the law violates performer's First Amendment rights -- their freedom of expression. Supporters of the law are calling it a workplace safety issue, not a free speech one. The county has not yet decided how to enforce the law.