NPR News

More is being learned today about former Navy SEAL Chris Kyle and the man accused of killing the decorated Iraq War veteran.

One of the Twitter hashtags devised by rabid Beyonce fans before last night's Super Bowl halftime show was religious in nature: #praisebeysus. Praise Beysus! This bit of hyperventilating resonated in interesting ways. Strutting into the very center of America's biggest television spectacle, the 31-year-old superstar intended to secure her place in the musical pantheon next to recent Super Bowl-approved legends Madonna, The Who, Bruce Springsteen and Prince.

Researchers are disappointed in the results of a long-awaited study of the leading candidate vaccine against tuberculosis, one of humankind's most elusive scourges.

But, pointing to more than a dozen other TB vaccines in the pipeline, they say they're not discouraged.

Good morning.

Our early headlines:

-- Lights Out, It Was A Memorable Super Bowl

-- Royal Recovery: Remains ID'd As Those Of King Richard III

There was a 108-yard kickoff return for a touchdown.

A last-minute drive that could have won the game for San Francisco.

An MVP performance by Ravens quarterback Joe Flacco.

The daily lowdown on books, publishing, and the occasional author behaving badly.

The Canadian mint stops distributing pennies on Monday. Canada stopped making one-cent coins last year to cut costs, since each penny cost 1.6 cents to make. Most stores will round out change to the nearest five cents.