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In California, state officials are planning a multibillion-dollar environmental restoration of the inland delta near San Francisco Bay. There's only one problem: No one knows what the landscape used to look like. Ninety-seven percent of the original wetlands are gone, so the state is turning to historians for help.

This detective story begins on a sunny day in a dry field of corn, about an hour east of San Francisco.

How does a president bring the war in Afghanistan to an end? There are 68,000 American troops serving in the country as the war enters its 12th year.

The war hasn't been a major issue in the presidential campaign, and polls show American voters are tiring of the war. But the next commander in chief will find the Afghan war among the most difficult of many foreign policy challenges.

Both President Obama and Gov. Mitt Romney appear to agree on a date: the last day of December 2014. That's when the Afghan security forces are scheduled to takeover.

Despite its liberal reputation, the home of Jack Kennedy and Tip O'Neill has never elected a woman as governor or senator. And in Massachusetts Sen. Scott Brown's tight re-election race with Democratic challenger Elizabeth Warren, gender could prove the difference.

When Brown won his Senate seat in a special election in 2010, he came away unscathed by something his female opponent at the time would have had a much harder time explaining away. He posed nude for Cosmopolitan when he was 22 to help pay for law school.

As we approach the presidential election in November, Weekend Edition is seeking your questions about issues and candidates in a new segment called Reporter Hotline. This week, we answer inquiries about the candidates' policies on housing and taxes.

Major defense companies said this week they will not send out layoff notices to warn of big job cuts in January, taking away the prospect of embarrassing layoff notices right before the November elections.

That's led to charges that the White House overstepped when it told the industry the notices are not needed.

What's it like to be a third-party candidate running for president? Ralph Nader can tell us.

"You're excluded from the debates," he says. "You spend an exhausting amount of time, until Labor Day, trying to get over the ballot access barriers. Your petitioners are harassed in the streets; you're subjected to baseless lawsuits by one party or another."

Nader has run for president three times – four if you count the time he ran unofficially. In 2000, he managed to win almost 3 percent of the national vote.

Nov. 6 is 32 days away, but for millions of Americans, there is no longer an Election Day.

Thirty-two states and the District of Columbia now have early voting, which is under way even now in eight states. Hundreds of thousands of votes have already been cast, most before this week's presidential debates or Friday's jobs report, and all ahead of the three future debates and any unforeseen October event that might test the mettle of a candidate.

In the fall of 2002, the Washington, D.C., area was in the grip of terror. John Allen Muhammad and 17-year-old Lee Boyd Malvo were on a killing spree, targeting people as they filled up with gas or crossed the street.

For the past decade, al-Qaida has been a top-down organization.

Letters seized at Osama bin Laden's compound in Pakistan showed that he was a hands-on manager, approving everything from operations to leadership changes in affiliate groups.

But there's early intelligence that al-Qaida may have had a small role in the attack on the U.S. Consulate in Benghazi, Libya, which killed four Americans, including Ambassador Chris Stevens, on Sept. 11.

If al-Qaida involvement is confirmed, it may signal that al-Qaida has changed.

Brenda Clubine is a platinum blonde with focused blue eyes and a no-nonsense demeanor.

She spent 26 years in prison for killing her husband. After enduring beatings and emergency room visits, she says, it finally ended in a locked motel room where he told her to give him her wedding rings.

"I said, 'Why?' He said, 'Because tomorrow they won't be able to identify your body without them,' " Clubine says.

American speedskater Simon Cho says what he did was "wrong" when he yielded to what he claims was persistent pressure from a coach to tamper with another skater's blades at the World Short Track Team Championships in Poland last year.

"Tampering with someone's skates is inexcusable," Cho told NPR in his first interview about the incident. "And I'm coming out now and admitting that I did this and acknowledging that what I did was wrong." The Washington Post and the Chicago Tribune also spoke with Cho earlier this week after the NPR interview.

Ken Rensink's path to special education teaching began when he was 19, just one day after he completed his training for the U.S. Army Reserves. He fell asleep at the wheel of his car, hit a telephone pole and nearly lost his life.

"I was paralyzed from the waist down," Ken told friend Laurel Hill-Ward, a Chico State University professor who trains special education teachers. "My left arm was so weak, I could barely hold a plastic cup of water."

For President Obama, Thursday appeared to have its share of what the French call staircase wit.

We've all experienced it. Heading up the stairs to bed, you think of the perfect response to something someone else said earlier. Of course, it's too late.

The day after his widely panned presidential debate performance, Obama delivered the sort of retorts to his Republican challenger, Mitt Romney, that were mainly absent the night before.

If you want to vote in the November elections and you aren't registered yet — you'd better hurry. The registration deadline in five states is this weekend. By the following weekend, the deadline will have passed in more than half the states.