The Bay Area is winding down an amazingly warm weekend but a Sunday night announcement on a national security issue by President Obama has the nation on edge.

Scheduled for 10:30 p.m. EST, President Obama is expected to take the podium in minutes. Here is a link to a live webcast: http://www.whitehouse.gov/live/president-obama-delivers-statement.

Like every other media outlet on Earth, we'll update when more information is available. On CNN, Wolf Blitzer said that his sources say it's not related to Libya. Online, buzz is that it could be related to Osama bin Laden is flying. (Follow on Twitter with #potus1030.) No real information seems forthcoming until live announcement, which should be happening momentarily.

7:44 p.m, update: After Blitzer commended himself on air about his lack of rumor-mongering, CNN reporting that U.S. has Bin Laden's body. On Twitter, an NYT news alert went out with same news.

7:47 p.m. Here is NYT story.

7:59 p.m. Online and on TV, more details seems to be emerging, although nothing seems really confirmed. Ben Smith from Politico tweeted that Al Jazeera English was reporting that Bin Laden's death "happened some time ago but took time to confirm." Andy Carvin, NPR's prolific Twitter-er, noted "So assuming Obama has known this for a while know, go watch his White House Correspondents Dinner speech again and look for subtext." And Blitzer, on CNN, saying it'll be another 10-15 minutes before announcement.

8:06 p.m. CNN and Al Jazeera saying that Bin Laden killed in a mansion near Islamabad. CNN also saying that it was done by a "U.S. asset."

8:27 p.m. Still no Obama, the networks are speechifying and the internet is making hay of the fact that President Bush unrolled his "Mission Accomplished" banner ten years ago today.

8:28 p.m. NPR is carrying part of an AP report saying Bin Laden's death happened recently: "A senior U.S. counterterrorism official said bin Laden was killed in a ground operation in Pakistan, not by a Predator drone," The Associated Press reports. "The official said it happened last week."

8:36 p.m. President Obama didn't bury the lede, saying that Osama Bin Laden has been killed. The 9/11 attack was "seared into national memory," and he invoked images of "black smoke billowing up from Pentagon." 

As terrible as that day was, though, Pres. Obama said that "the worst images were not seen by the world," noting the "empty seat at the dinner table."

"Nearly 3,000 citizens were taken from us, leaving a gaping hole in our hearts."

Then Pres. Obama gave a pocket history of the history of the U.S.'s hunt for Bin Laden. First Bin Laden escaped into the border of Pakistan after 9/11. When Pres. Obama took office, he directed Leon Panetta, head of CIA, to make capture or killing Bin Laden "the top priority of the war against Al Queda." Then, last August, "after years of painstaking work," the U.S. got "a possible lead to Bin Laden." After months of confirmation, Pres. Obama said that Bin Laden was "hiding within a compound deep inside Pakistan."

"I determined that we had enough information to take action last week," Pres. Obama said. An attack was launched, and although there was a firefight, no Americans were harmed.

In the latter third of his speech, Pres. Obama attempted to make sense of this historic event. Killing Bin Laden was done with the help of Pakistan and it was a blow for global security. "The death of Bin Laden marks the most significant achievement to date to in our nation's effort to defeat Al Qaeda," he said. But, he also clarified that Bin Laden was not a religious target: the U.S. is "not, and never will be, at war with Islam."

"Bin Laden was not a Muslim leader," Pres. Obama said, "He was a mass murderer of Muslims."

9:19 p.m. As crowds gather at the White House and Ground Zero, more details on raid are coming out. CNN reporting it was a helicopter raid that last 40 minutes involving Navy SEALS. Many are also reporting that the million-dollar mansion attracted suspicion because it had no internet/phone service, and people burned the trash. Also, a Roll Call editor is reporting that Representative Nancy Pelosi (D-CA) among the group of Congressional leaders phoned by Vice President Biden before the President's speech.