IRS official will plead the Fifth rather than testify to Congress tomorrow.

I lived in the Midwest for a decade, hunkering down in basements this time of year the way you do (or at least are supposed to do), but tornado videos never get old to me. Some of the most dramatic videos from yesterday’s storm.

The confirmed death toll in Oklahoma has been revised downward to 24.

I think it’s fair to say that Harry Reid isn’t by inclination or temperament a big fan of filibuster reform. That’s partly because it will upset whatever collegiality is left in the Senate and make it really hard for him to “run” the Senate. But he’s not above keeping it in play as a negotiating chip with Mitch McConnell over important White House nominations. That’s why Reid keeps raising the prospect of doing something on filibuster reform, after initially declaring the issue resolved with some minor rules changes in January. His threats make a lot more sense in that context, especially since it’s not clear he has 51 Democrats on board for a dramatic rule change. But McConnell probably knows that, too, so at some point this posturing will lose his effectiveness, if it hasn’t already.

For some straight talk on leaks, leak probes, and national security journalism, go read Walter Pincus.

Some amazingly good photos of people being extricated from the rubble in Moore, Okla., here, here and here.

As of 9:30 p.m. ET, the death toll in the Moore, Okla. tornado is 51 and expected to go up, with grim reports from local TV station KFOR at the scene of one of two elementary schools hit by the storm. Photos of the devastation.

Up until now, the White House’s handling of the release of the inspector general’s report that revealed the IRS targeting of conservative groups has seemed routine and appropriate. But Jay Carney is briefing reporters right now at the White House (watch) and has made a couple of new revelations, one of which runs counter to what he told reporters last week.

Give a few minutes to Jane Mayer’s vivid new story on the Koch brothers, PBS, and soft censorship.