With Rolling Stone's 9,000-word article about the brutal gang rape of a University of Virginia student under intense scrutiny, Washington Post reporter Taylor Rees Shapiro, who uncovered flaws in the article, and UVA student Sandra Menendez, who knows the alleged victim, speak with Brian Stelter.

Related: CNNMoney story about what comes next for Rolling Stone

Menendez was interviewed by Erdely but not quoted. She said she and several other students "felt really uncomfortable after being interviewed."

Menendez said she concluded that Erdely had an agenda: "I think she was trying to tell a really painful story, which is that sexual assault really does happen at the University of Virginia and also around the United States. I'm not quite sure if the story that was told, you know, really does speak truly to it."

Hanna Rosin, a writer for Slate and The Atlantic, says the disputed Rolling Stone article about a brutal gang rape at the University of Virginia sounds like an instance of "belief getting in way of facts."

"Wanting the story desperately to be true got in the way," Rosin said.

Dan Pfeiffer, a senior advisor to President Obama, talks with Brian Stelter about shaping the president's message and seeking new, nontraditional media forums.

Al Sharpton is an activist, a fund-raiser for his civil rights organization, and an informal advisor to President Obama and the mayor of New York City. So is it problematic that he also hosts a talk show on MSNBC? Brian Stelter speaks with National Urban League president Marc Morial, West Angeles Church of God in Christ minister Johnathan Gentry , and NY1 host and CNN commentator Errol Louis.

Was it appropriate for television networks to repeatedly show disturbing video of Eric Garner being choked by a police officer, given that Garner died afterward? Carl Bernstein and Dr. Gail Saltz weigh in on the journalistic and psychological questions raised by the video.

Brian Stelter examines varying numbers about deaths at the hands of police — as cited by Bill O'Reilly, Chris Hayes, Lawrence O'Donnell, and others — and determines that no reliable, comprehensive source of data exists.

At the end of Sunday's program, Brian Stelter noted a number of media news items, including Candy Crowley's decision to leave CNN.

Crowley has had "27 brilliant years" at the network, Stelter said. She has anchored "State of the Union" for the past four years.

She told him, "After 27 years, I want to do something new, someplace new. I knew I had to leap before the next election got started in earnest, because I am a moth and elections are my flame. I worried when 2016 really got underway, I couldn't bring myself to leave."