Police arresting Daryl Hannah on Tuesday. (Saul Loeb/ Getty Images)

Hey, isn’t that . . . ?: Daryl Hannah, getting arrested in front of the White House on Tuesday morning. The “Splash” actress, 50 (jeans, tweed jacket), was in town to do her part in a two-week-long protest of the Keystone XL oil pipeline, which kicked off last week. Before the demonstration, Hannah joined about 70 fellow activists in Lafayette Park, helping to scribble signs and delivering a short go-get-’em speech. “Sometimes it’s necessary to sacrifice your freedom temporarily to gain greater freedom,” explained the actress. “And we want to be free from the horrible death and destruction that fossil fuels cause.”

It’s just more of the same, though. Hannah is the second actor to take a trip to the slammer since the demonstrations got rolling. Last Tuesday, “Superman” actress Margot Kidder was tossed in the paddywagon. It’s not even Hannah’s first civil disobedience arrest — in 2006 she was picked up during a demonstration to save urban gardens in Los Angeles, and again in 2009, during a campaign against mountaintop-removal mining in West Virginia.

Arrested: Onyango Obama, uncle of President Obama, who was picked up on suspicion of drunk driving last Wednesday in Framingham, Mass., reports the Los Angeles Times (everybody has one of those uncles, apparently). Obama, 67, allegedly rolled through a stop sign and his car nearly collided with an unmarked vehicle being driven by an off-duty police officer. Whoops! He is now being held without bail on an immigration detainer (though the Boston Herald reports that he has a Social Security card and a Massachusetts driver’s license). According to the police report, when Obama was offered a phone call, he replied, “I think I will call the White House.” It’s not clear whether he actually got through.

Also arrested: Bradley Barton, son of Rep. Joe Barton (R-Tex.), on charges of driving drunk in a school zone last Thursday, reports Dallas/Fort Worth’s WFAA-TV. According to police, Barton, 41 — who made an unsuccessful bid for Congress in 2002 — had a child under the age of 15 with him in the vehicle when he was pulled over. His dad’s office declined to comment.

Married: Dean Sheremet, jilted ex-husband of singer LeAnn Rimes, reports People. On Tuesday the dancer-turned-chef, 30, posted a video to his Web site showing himself and his new wife, photographer Sarah Silver, 35, strolling out of a city clerk’s office hand in hand. The couple became engaged in November. Shermet and Rimes were married for seven years, but divorced in 2010, after Rimes began a relationship with “CSI:Miami” actor Eddie Cibrian.