National

George Zimmerman, the man charged with second-degree murder in the death of Florida teenager Trayvon Martin, is going to ask for a "stand your ground" court hearing in an attempt to have the case against him dismissed without ever going to trial.

There's word from the wife of first-man-on-the-moon Neil Armstrong that he's "doing great" after cardiac bypass surgery on Tuesday, NBC News reports.

And that's good, tweets second-man-on-the-moon Buzz Aldrin, because he and Armstrong have "agreed to make it [to] the 50th Apollo Anniv in 2019."

Armstrong turned 82 on Sunday.

Republican presidential candidate Mitt Romney's decision not to release more of his past tax returns has fueled countless attacks and counterattacks.

The former Massachusetts governor has released his 2010 tax return and promises that his 2011 return is forthcoming. He says that's enough.

But that's not enough for Senate Majority Leader Harry Reid, D-Nev. The result is an increasingly ugly fight.

Republican presidential candidate Mitt Romney has acknowledged that he had money in a Swiss bank account until 2010. Romney says he wasn't trying to hide the money, since he reported the account to the government.

Even so, he closed the account at a time when the federal government was in the middle of a major crackdown on offshore tax havens — a crackdown that has made it harder for Americans to hide their money overseas.

About half of those surveyed in a new poll of voters in three swing states thought presidential candidates should release multiple years of their tax returns.

Misty May-Treanor and Kerri Walsh Jennings have won an unprecedented Olympic three-peat in women's beach volleyball, as they defeated their fellow Americans, the team of Jennifer Kessy and April Ross, in the gold medal match.

The match lasted just 36 minutes, as May-Treanor and Walsh Jennings won the first and second sets by the same score: 21-16. On the final point, Ross' serve floated long, and the celebration was on. May-Treanor started dancing on the sand, and the players ran to the stands to hug their loved ones.

Presumptive Republican presidential nominee Mitt Romney campaigned on Wednesday in Iowa, which is expected to be a crucial battleground state in the fall. President Obama will travel by bus through Iowa next week. Audie Cornish talks with Ari Shapiro, who's traveling with the Romney campaign.