Lisa Belkin, 07/23/12

Senior columnist for life/work/family, The Huffington Post

While there are (thank God) few parents who have watched their children branded as serial killers, there are (tragically) too many who can identify with another kind of parenting hell -- watching your child spiral toward insanity.

Andy Richter, 07/23/12

Actor and writer

Why is it so crazy to float the notion that the kind of assault weapon used in Aurora (not necessarily the gun itself, but the magazine) might not be the kind of thing that just anybody should be able to stroll into a gun shop and buy?

Elizabeth Warren, 07/23/12

Democratic Candidate for U.S. Senate in Massachusetts

A working market needs rules, and the Consumer Financial Protection Bureau is starting to level the playing field. That's a good thing for consumers -- and it didn't come a moment too soon.

Paul McCartney, 07/23/12

Musician

Since Earthrise was taken we've been so busy warming our world that it now looks radically different from space. We've put so much carbon into the atmosphere that today's astronauts are looking at a different planet.

Sheila C. Johnson, 07/23/12

Entrepreneur, Philanthropist, Filmmaker

Over the last 30 years, our understanding of AIDS has improved dramatically, bringing us to a point of unprecedented possibility and hope. Now is the time to build on that momentum, and end the epidemic for good.

Geoffrey R. Stone, 07/23/12

Edward H. Levi Distinguished Service Professor of Law, University of Chicago

What did the Framers have in mind? How could they have had such a peculiar and idiosyncratic notion of individual freedom?

Peter Dreier, 07/23/12

E.P. Clapp Distinguished Professor of Politics, Occidental College

I've pulled out 15 people who represent the most influential progressives of the last century and provided short summaries about their lives and legacies.

Leo W. Gerard, 07/23/12

International President, United Steelworkers

John McCain and Mitt Romney share a secret. It's 23 years of Mitt's tax returns.

Mark Gongloff, 07/23/12

Chief financial writer, The Huffington Post

The 2011 argument about the debt ceiling cost the U.S. government about $1.3 billion in extra borrowing costs, according to a new study. And that's just the costs that they bothered to count.

Dr. Peggy Drexler, 07/23/12

Author, research psychologist, and gender expert

Children living in poverty face immeasurably greater challenges than those who are better off. They need social supports and, often, support from the government. But most of all, children need caring, resourceful parents who give them time and attention.

Haley Barbour and Terry McAuliffe, 07/23/12

Some have given up on American industry, saying manufacturing jobs are not coming back. Business leaders beg to differ, evidenced by growing efforts at reshoring and a recommitment to the "Made in America" label.

A-Trak, 07/23/12

DJ & Producer

As the DJ moves from club booths to festival stages, the equipment has become increasingly varied. And as the lines continue to blur between a DJ who mixes and a producer who presses play, questions of authenticity have been raised.

Keli Goff, 07/23/12

Author, Commentator and Contributing Editor, TheLoop21.com

Though gun homicide has been the leading cause of death for black teens for years, the issue of gun control tends to find itself catapulted to the front pages and the top of political priority lists only when a high profile tragedy takes place.

David Katz, M.D., 07/23/12

Director, Yale Prevention Research Center

Does anyone truly think Thomas Jefferson or James Madison envisioned a "right to bear arms" extending to the sale of high-tech combat gear to grad students?

Art Brodsky, 07/23/12

Communications Director, Public Knowledge

The answer to the question of which part of society should censor the Internet is: neither government nor industry. Both institutions can be equally dangerous to Internet users, but only one has the capacity to be a guarantor of rights if it so chooses.

Ruth Bettelheim, Ph.D., 07/23/12

Psychotherapist; Executive/life coach

In 2010, New York became the last state to adopt no-fault divorce. But children's rights are still routinely ignored. Will it take another 40 years for children to be heard?

Eric Zuesse, 07/23/12

Investigative historian

Obama's phrase, "you didn't build that" -- which the president has repeatedly said was meant to refer to roads and bridges -- is being presented to make it look as if he were saying, "you didn't build your business." And Fox News has repeated the same attack for two days.

Robert Kuttner, 07/22/12

Co-founder and co-editor, 'The American Prospect'

For more than a decade, deficit hawks and their allies in the media have been promoting a grand bargain whereby Republicans agree to tax hikes and Democrats agree to cut social programs like Social Security and Medicare.

Mark Hyman, MD, 07/21/12

Practicing physician

Emotional eating has become ubiquitous in our fast-paced culture, which honors quantity over quality, willpower more than pleasurable nourishment and the dollar more than humanity.

Heather Lende, 07/23/12

Author. 'If You Lived Here, I’d Know Your Name' and 'Take Good Care of the Garden and the Dogs'

"We'll get in. It won't be a problem," the Olympic viewing veteran Grandma Joanne says. "In Atlanta where was plenty of room once we got there because the seats were so hot you couldn't sit on them." London is wet, so if we pack rain gear we'll be fine.

Joshua Kors, 07/23/12

Investigative Reporter, The Nation

On Friday, Guor Marial and I spoke about his extraordinary Olympic journey: from Sudanese refugee, to New Hampshire high school student, to Iowa State track star and now London Olympian.

Don Tapscott, 07/23/12

Advisor to government and business leaders; Author, 'Macrowikinomics'

Humanity is beginning to reinvent old institutions around a new set of principles of collaboration, openness, interdependence and integrity. Entrepreneurship is exploding around the world because the Internet enables little companies to have all the capabilities of big companies.

Amy B. Dean, 07/22/12

Fellow of the Century Foundation and co-author, 'A New New Deal: How Regional Activism Will Reshape the American Labor Movement'; President and founder, ABD Ventures

Young people are not acting irrationally when they report growing cynical. They are responding to the reality of an American Dream that lies in fragments at their feet.

Maureen Ryan, 07/22/12

TV critic, The Huffington Post

Mike made a choice too, and the reason we like this guy is because he's one of the few characters on this show who is not deluding himself.