The demand for answers continues as world climate-change leaders gather in Copenhagen for a summit on climate change.

The University of East Anglia Climatic Research Unit, known as CRU is now at the center of what’s known as "Climate-gate".

More than one-thousand emails seized by hackers reveal researchers’ private discussions on global warming that have led to allegations that scientists “cooked the books” on global warming.

We want to know has the release of these emails changed your views on global warming?

Post your comments here and Heidi will read some responses during CNN Newsroom from 9am to 11am ET.

Tiger Woods is just the latest in a long line of celebrities, politicians and others who have come forward and made public apologies for their “transgressions.”

We want to know about your biggest apology. What did you have to apologize about? And if you had to do it again, would you?

Post your comments and Heidi will read some of them in the Newsroom between 10 and 11am ET.

Last night, the President outlined his new strategy for the war in Afghanistan. The President plans to send another 30,000 troops to Afghanistan, but he also says he'll start a troop withdrawal by the summer of 2011.

We want you to share your views on the President’s new war strategy.
Post your comments and Heidi will read some of them in the Newsroom between 10 and 11am ET.

The University of California Board of Regents has approved a 32 percent increase for students attending the state's premier public schools.

The move prompted a protest by hundreds of students at two of the University's campuses. Dozens were arrested at UC-Davis.

But students in California aren't the only ones feeling the pain of rising college costs.

Are you or someone you know affected by increasing tuition fees?

Post your comments here, and Don will read some of them in the Newsroom, from 9-11am ET.

A federal judge has ruled that the Army Corps of Engineers is to blame for Hurricane Katrina flooding in New Orleans' Lower Ninth Ward and St. Bernard Parish. He says the Corps failed to properly maintain a shipping channel.

Overall, the storm damage covered more than 90,000 square miles and displaced nearly 300,000 people, causing more than
$81 billion in damage. FEMA called Katrina "the single most catastrophic
natural disaster in U.S. history."

This ruling could lead to billions in damage claims.

Post your comments here, and Fredricka will read some of them in the Newsroom, from 9-11am ET.

Most women should start regular breast cancer screenings at age 50, not 40, according to new guidelines released by the U.S. Preventive Services Task Force.

The new recommendations do not apply to the group of women with unusual risk factors.

The group says women ages 50 to 74 should have mammograms less frequently – every two years, rather than every year. And the panel says breast self-exams do no good, and women shouldn't be taught to do them.

What do you think of the new guidelines? And if you are a woman, is this new information a relief or a source of added stress?

Post your comments here, and Heidi will read some of them in the Newsroom, from 9-11am ET

President Barack Obama is asking for revisions to options he previously received for sending more troops to Afghanistan, according to a senior administration official. The war council – made up of top Cabinet, Pentagon and administration officials – met with the President for the eighth time Wednesday to discuss a request by the top U.S. commander in Afghanistan for up to 40,000 more troops

What do you think the president’s military strategy should be in Afghanistan?

Post your comments here, and Heidi will read some of them in the Newsroom, from 9-11am ET.

Evelyn and Andreas Preuss at the Berlin Wall, April 1990

Lots of memories today of the Berlin Wall falling. My mother, who is from Berlin, and I went there to participate in the event.

Read my CNN.com blog entry here: http://inthefield.blogs.cnn.com/2009/11/06/walls-shadow-fell-across-generations/

I talked with Josh Levs in the CNN Newsroom about our Wall experience. Check out the clip below.

It’s a developing story. The death toll stands at 13 in the shooting spree at Fort Hood, Texas. 30 others are recovering from injuries. The alleged attacker, Army Major Nidal Malik Hasan, a U.S. citizen of Jordanian descent, survived after being shot several times. The Army says Hasan had received orders to deploy to Afghanistan – and reportedly he didn’t want to go.

Share your thoughts or condolences for family and friends of the victims here on our blog. Heidi will share some of them in the Newsroom, 9am-11am ET.

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