Jamie Henn, 12/17/12

Co-founder and Communications Director, 350.org

While we welcome the debate over divestment, it's disappointing that Bryce and the Journal are leaving out key facts about the promise of renewables and Bryce's own industry affiliations.

Eric Boehlert, 12/17/12

Senior Fellow, Media Matters for America

By going on Twitter and demanding Obama take action while Murdoch's highest profile property in the United States actively tries to silence debate about gun reform, the media baron either revealed himself to be a hypocrite of historic proportions, or clueless about Fox News' content.

Harold S. Koplewicz, MD, 12/17/12

President, Child Mind Institute

To blame the violence in Newtown, Connecticut on Asperger's or a personality disorder, as many media outlets currently are, is a serious mistake.

George Lakoff, 12/17/12

Author, 'The Political Mind,' 'Moral Politics' and 'Don't Think of an Elephant!'

Conservatives have argued that guns = freedom, and that there should be no limit on such freedom. The president trumped their argument: The price of not protecting the nations' children is too high. Permitting the mass murder of our children is not freedom.

Mitchell Bard, 12/17/12

Writer and Filmmaker

Arguments against reasonable, limited gun control are not based on empirical positions but on subjective gut-feelings. The reasons offered to oppose gun control are emotional responses meant to divert the argument from the evidence.

Daniel Ellsberg and John Perry Barlow, 12/16/12

When a government becomes invisible, it becomes unaccountable. To expose its lies, errors, and illegal acts is not treason, it is a moral responsibility. Leaks become the lifeblood of the Republic.

HuffPost Radio, 12/16/12

Spitzer and Matalin debate whether the GOP can shift on Immigration to avoid political suicide and on guns to reduce homocides. That's up to the Norquist of Guns -- Wayne LaPierre -– to allow NRA-owned electeds to stop the slaughter.

Richard (RJ) Eskow, 12/17/12

Writer; host, 'The Breakdown'; Senior Fellow, Campaign for America's Future

The nation has come together, as it always does, during a moment of tragedy. But every day thousands of tragedies go unseen. Would we be as divided as we are if those tragedies were as immediate and visible as the deaths in Newtown?

Kim Simon, 12/16/12

Mother, Wife, Blogger, mamabythebay.com

Dear Members of the Media: You already know that furious parents across the country feel it's inappropriate to shove a microphone in the face of a traumatized 8-year-old. But have you ever wondered why? It's because we will remember. I remember.

Jason Linkins, 12/16/12

Editor, Eat the Press

The elephant in the room today is this terrible tragedy that occurred in Newtown, Connecticut, which may be the saddest thing I've seen in the news since I started writing here in 2007.

Denette Wilford, 12/17/12

TV Blogger

As The X Factor comes to an end this week, I wonder what will become of the show in its third season. Even though Simon Cowell and Demi Lovato bicker like a petulant teenager and irksome uncle, I quite like their relationship. I never thought they would share much chemistry, but the 'X Factor' duo has been delightful to watch, which made me think of other pairs on other shows that have been a surprising treat.

Timothy Karr, 12/16/12

Campaign Director, Free Press and SavetheInternet.com

While it's unfortunate that Ryan should have been cast into the spotlight in such a way (one of many tragic things to befall him on Friday), it's not the Internet that's to blame, but Internet-era journalism.

Steve Kettmann, 12/17/12

Author and publisher

There can be no doubt that blanket media coverage of monstrosities like school shootings can have the effect of making additional such gruesome incidents more likely.

Joseph Bobrow, 12/16/12

Founder and president, Coming Home Project

Our culture, in which the draw of violence is turbo-charged, glamorized and commercialized, clearly plays a pivotal role in the psychological problems of an alarmingly growing number of young men who commit wanton murder.

Sanjay Sanghoee, 12/16/12

Banker, political commentator, author of thriller novel 'Merger'

The tobacco industry has long sold smoking by portraying it as cool. The tobacco industry itself has not gone away but it has certainly been forced to curb its marketing practices to be more responsible. That is what must happen with guns, too.

Lisa McElroy, 12/14/12

Associate professor of law

Because I'm a mother, I'm often asked how these school shootings make me feel. And I'll tell you how they make me feel. They make me feel unbelievably angry.

Hannah Orenstein, 12/15/12

HuffPost Teen Intern

Editors debated the ethics of displaying children's faces in photos or whether or not journalists in Newtown had the right to interview children without their parents' consent. Tweets were hesitantly composed, but as one editor said, "What can we possibly say? It's awful. That's it."