Ten years after 9/11, the American public is “like an individual suffering from post-traumatic stress disorder,” writes ethicist Robin Lovin. “We are unable to return to the old world we thought we understood, but we cannot tolerate the noise and uncertainty of the new world, either.”

“Have we healed? Yes, healed with a hole. It’s never a complete healing, but at least there a willingness to write a new chapter of life,” says Rabbi Joseph Potasnik, a New York Fire Department chaplain.

“The people who are paying the costs, military families, veterans, civilians in Iraq, Afghanistan, and Pakistan—those people deserve to have their story told,” says Professor Catherine Lutz of Brown University.

“You’re not tolerant,” says this Christian philosopher, “if you're indifferent. You're tolerant if you disapprove of the other person's religion but put up with it nonetheless."

“We think of 9/11 every day,” says Rabbi Joseph Potasnik of Congregation Mount Sinai in Brooklyn Heights. “All you do when it comes to the anniversary, you try to look back and say have I made a difference?”

College and university students recall 9/11 and reflect on how it affected their spiritual lives.

The years since 9/11 may have brought many Americans new interfaith understanding, but they have also expanded interfaith tensions.

"This decade has been a time of encountering and engaging Islam in a new way that also causes Christians to think about their own identities and understand God and God's love for people beyond the Christian world," says University of Notre Dame history professor Scott Appleby.

“I don’t believe that there is an intrinsic sacredness in any site. We make them sacred in our visits,” says Judaic studies professor James Young, an authority on memorials and on the World Trade Center memorial process.

Correspondent Kim Lawton talks again with minister, educator, author, and Morehouse College president Robert Franklin, who turns to theologian Howard Thurman to make sense of the events of 9/11.