Ryan Huddle/Globe Staff; Globe file

50 years after Beatlemania, a look at a year of change

On Feb. 9, 1964, the Beatles sent shock waves through America’s popular culture when they debuted on “The Ed Sullivan Show.”

Sebastien Toutant of Canada said the Olympic slopestyle course felt like “jumping out of a building.” (Photo by Mike Ehrmann/Getty Images)

When the competition gets a little too extreme

The course for the slopestyle event has raised concerns among the athletes, including Shaun White, who withdrew, citing “the potential risk of injury.”

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/02/08/BostonGlobe.com/Sports/Images/DV1632442.jpg US Figure Skating calls alleged judging deal ‘categorically false’

A “proposed barter” would have the US support Russian skaters in the new team event that concludes Sunday, a French daily reported.

Opinion

LAWRENCE HARMON

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2014/02/08/BostonGlobe.com/EditorialOpinion/Images/Lawrence_Harmon-1378.jpg Treating gang violence as mental illness

What exactly is the mental process that drives young men to kill and maim on the streets of Boston?