Mark Memmott

(We're following the news from Oklahoma, where a tornado devastated the Oklahoma City suburb of Moore on Monday. Most recent update: 3:37 p.m. ET.)

While the number of deaths and amount of damage caused by a huge tornado that tore through Moore, Okla., on Monday remain high, state officials announced just after 9 a.m. ET Tuesday that fewer people than feared may have lost their lives.

The Internal Revenue Service is under fire for improperly singling out some conservative groups for extra scrutiny — putting them through months (or longer) of questions that delayed or derailed the organizations' requests for tax-exempt status.

Well, now the chairman and ranking Republican on the Senate Finance Committee have some questions and requests — actually dozens of them — for the IRS.

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.

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:

Update at 5:38 p.m. ET. One More IRS Official To Leave

Another official is out at the embattled agency.

The Associated Press reports that Joseph Grant, commissioner of the IRS' tax exempt and government entities division, will retire June 3. The division scrutinized Tea Party groups when the applied for tax-exempt status.

Update at 4:45 p.m. ET. Obama Names New IRS Acting Chief

In a message written on a wall of the boat where he was found hiding, Boston bombings suspect Dzhokhar Tsarnaev claimed responsibility for the attack and said it was motivated by anger over the Afghan and Iraq wars, sources familiar with what was found have told CBS News correspondent John Miller.

Attorney Gen. Eric Holder has ordered the Justice Department to open an investigation into whether any laws were broken when the Internal Revenue Service singled out some conservative groups for extra scrutiny, he told reporters Tuesday.

Saying she is "writing about it now because I hope that other women can benefit from my experience," actress Angelina Jolie reveals on the op-ed pages of The New York Times that she had a double mastectomy earlier this year to substantially reduce the chances she will develop breast cancer.

It's "outrageous and there's no place for it" if the Internal Revenue Service did, as it has admitted, single out some conservative groups for extra scrutiny in recent years, President Obama said Monday morning during a news conference at the White House.