Mark Memmott

ABC News White House correspondent Jonathan Karl now says he regrets that some key parts of a major story he reported on May 10 were wrong.

A challenge to the way a western New York State town board has had prayers read before its public meetings has made its way to the U.S. Supreme Court.

The justices announced Monday morning that they will hear oral arguments in the case of Greece, N.Y. v. Galloway, Susan.

Good morning.

Our early headlines:

-- Pledging Not To 'Screw It Up,' Yahoo Seals Deal For Tumblr.

-- FBI Agents Killed In Training Accident Worked In Elite Unit.

The news that broke Sunday is now official.

Yahoo confirmed early Monday morning that it is buying Tumblr in a deal worth about $1.1 billion. "Per the agreement and our promise not to screw it up, Tumblr will be independently operated as a separate business," Yahoo added.

In its statement announcing the deal, Yahoo says that:

There's no relief today for folks in the nation's midsection.

Take a break from the scandal du jour for something that's just darn nice.

T-shirts will surely be made:

Along with draft rules for how to become a licensed grower or seller of marijuana, the Washington State Liquor Control Board this week released the official "icon logo" that will need to be put on packages of pot and "marijuana-infused products sold at retail."

Dick Trickle, a "short-track hero" in the '70s and '80s who moved to the NASCAR circuit later in his career, died Thursday.

According to The Charlotte Observer, the 71-year-old was killed by "an apparent self-inflicted gunshot wound, Lincoln County [N.C.] deputies said."