The demand for answers continues as world climate-change leaders gather in Copenhagen for a summit on climate change.
On Monday, the EPA released a statement saying greenhouse gas emissions pose a threat to public health and welfare.
But a new CNN poll finds that while most Americans believe that global warming is a proven fact, the number who think that climate change is due to man-made emissions has fallen below 50%. We want to hear your views on global warming.
Post your iReport video responses and we'll show some during CNN Newsroom.
The Transportation Security Administration says it will launch a “full review” of an incident in which the agency posted on the internet a sensitive manual outlining security procedures for law enforcement officers, diplomats, prisoners, federal air marshals and others.
The 93-page manual gives instructions to airport screeners on how to screen individuals. It also gives details on how screening is conducted and the limitations of the x-ray machines. The most sensitive information was redacted – which means people couldn’t read it – but hackers got in and put that information back in.
TSA officials say the manual was removed as soon as it was discovered.
We want to know what you think. Are you more concerned about your flying safety? What do you think should happen to make sure air passengers are protected?
Post your comments and we will read some of your responses in the Newsroom from 9am to 11am ET.