The U.S. military can fight on land, in the air, at sea and in space. Now it has a strategy for operations in a new domain: cyberspace.

Under a new plan unveiled Thursday, the Defense Department said it is preparing to treat cyberspace "as an operational domain," with forces specially organized, trained and equipped to deal with cyberthreats and opportunities.

The strategy presumes that "cyberattacks will be a significant component of any future conflict" and that the United States must be prepared to retaliate, possibly even with military force.

Thousands of assaults occur each year at California's state psychiatric hospitals. Last October, a patient allegedly murdered a staffer at Napa State Hospital. Employees there demonstrated, demanding greater safety.

Now, the protests have spread to Metropolitan State Hospital near Los Angeles, where about 100 workers recently spent a broiling hot lunch hour marching in front of the place where they work.

Ben Zimmer runs the web site Visual Thesaurus, which maps words and their relationships to each other. On Friday's Morning Edition, he talks with host Mary Louise Kelly about the special vocabulary that's arisen from Harry Potter books and films — the last of which, Harry Potter And The Deathly Hallows Part 2, opens this weekend. He compiled this quick guide to Potterisms.

1. Muggles and other blood types

With employment numbers stuck in a rut and high school grads among those least likely to land jobs, along comes fresh competition. Do you have any idea how many wizards, werewolves and vampires are going to be out of work soon?

In a few months, Craigslist is going to have all kinds of eye-catching resumes:

SCHOOL ATHLETE (captain of Quidditch team) seeks entry-level position. No degree, but considerable leadership experience. Contact Harry James Potter.

Or:

It was 1912 when Robert Walker fell off a cart that was used to pull heavy logs out of the forest, and the cart ran over him. Walker was 5 years old.

"He was just severely injured," Julian Walker — Robert's son — tells his daughter Julia Walker Jewell at StoryCorps in North Carolina. "And as an old man, he still had scars on his head where his scalp was rolled back. He was just scalped."

The one doctor in Pender County, N.C., did what he could to patch Robert up and then sent him to the hospital in Wilmington, N.C.

The perjury trial of onetime pitching ace Roger Clemens has blown up into a mistrial. On just the second day of testimony, federal Judge Reggie Walton ruled that prosecutors had indelibly tainted Clemens' ability to get a fair trial by exposing the jury to inadmissible evidence.

Still unresolved is whether prosecutors will get a second chance at making their case in front of another jury.

A fifth day of negotiations between President Obama and congressional leaders has concluded but they've yet to reach a deal to raise the country's debt ceiling. The AP reports, however that unlike yesterday's dramatic conclusion to the negotiations, Senate Minority Leader Mitch McConnell (R-KY) "pronounced the session a good one."

The state's Democratic governor and Republican legislators struck a deal Thursday to end a budget impasse. Robert Siegel talks with Minnesota Public Radio's Tom Scheck.

In the last decade, births have surpassed immigration as the driving force behind the Latino population growth in the United States. That's according to a new study released by the Pew Hispanic Center, today.

Most of that growth, researchers found, came from Mexican-Americans. The study found that from 2000 to 2010, 4.2 million Mexicans emigrated to the United States, whereas 7.2 million Mexican-Americans were born in the country. Pew reports:

Minnesota Gov. Mark Dayton and Republican lawmakers say they have reached a deal that will end Minnesota's government shutdown.

The AP reports:

The deal came after a three-hour negotiating session Thursday that followed major concessions by Dayton, a Democrat. It would end a two-week shutdown.

The two sides agreed on a proposal that would raise $1.4 billion in new revenue, half by delaying state aid checks to school districts and the other half by selling tobacco payment bonds.