Korva Coleman

Syrian rebels are taking a pounding in Aleppo, Syria's largest city but they continue to hold some neighborhoods where they've taken control. VOA reports the Syrian government is warning of "the mother of all battles" in the commercial hub, home to millions of people. Russia says a tragedy is "imminent."

Update at 5:36 p.m. ET. U.S. Attorney Will Investigate:

During a press conference today, Mayor Tom Tait asked for calm. He also said that the Office of the U.S. Attorney had agreed to investigate the shootings.

"The first step is to get to the truth," Tait said according to the Orange County Register. "That takes some time and patience, and that's what I'm asking for."

Our Original Post Continues:

China and Russia this morning vetoed a U.N. Security Council resolution that could permit sanctions against Syria unless the government of President Bashar Assad stops using weapons against civilians. This is the third time China and Russia have rebuffed measures pushed by the United States and its allies to try to bring a halt to Syria's violent civil conflict.

A day after Republican presidential candidate Mitt Romney spoke to the nation's oldest civil right organization, Vice President Joe Biden appeared at the NAACP's annual convention. He quickly tackled one issue that drew Romney sustained boos — the 2010 health care overhaul.

Biden appeared in place of President Obama, who made a brief videotaped address thanking the group for its work. He walked out to warm applause, and several of his remarks were interrupted by shouts of agreement.

Barely a day after she competed in the Miss USA beauty contest, Miss Pennsylvania Sheena Monnin tore off her sash and fired a scorching resignation:

"In good conscience I can no longer be affiliated in any way with an organization I consider to be fraudulent, lacking in morals, inconsistent, and in many ways trashy."

Trashy? There's a surprising perjorative from a woman who says on Facebook she's spent a decade associated with the pageant.

It won't trigger any catastrophes, according to scientists, but the Moon will orbit to its closest proximity to the Earth on Saturday night. It's called a "super moon": when a full moon reaches perigee near our planet.

Homeland Security Secretary Janet Napolitano pledged on Wednesday the investigation into Secret Service agents who allegedly hired prostitutes this month in Cartagena, Colombia, "will be complete and thorough and we will leave no stone unturned."