Just over 25 years ago, the Los Angeles Times’ media writer, David Shaw, did a four-part series on media bias covering abortion. This landmark effort, by a reporter who didn't hide his support for abortion rights, took 18 months and involved 100 interviews with journalists and activists on both sides. It concluded that there was consistent mainstream-media bias favoring the abortion-rights side.

For an elite mainstream news publication to admit that fact was unusual, to say the least.

More than two decades and numerous court rulings later, the Times has come out with another package on abortion, but this time it’s an investigation into how the Center for Medical Progress did a lot more coaching with their undercover agents on how to get Planned Parenthood officials to make inflammatory statements than was first thought.

The Times had student journalists with an investigating reporting program at University of California at Berkeley help them with the research. It begins thus:

She was subdued and sympathetic on camera. Her recollections of collecting fetal tissue and body parts from abortion clinics in northern California lent emotional force to the anti-abortion videos that provoked a furor in Congress last summer.

In footage made public last July, Holly O’Donnell said she had been traumatized by her work for a fetal-tissue brokerage. She described feeling “pain ... and death and eternity” and said she fainted the first time she touched the remains of an aborted fetus.

Unreleased footage filed in a civil court case shows that O’Donnell’s apparently spontaneous reflections were carefully rehearsed. David Daleiden, the anti-abortion activist who made the videos, is heard coaching O’Donnell through repeated takes, instructing her to repeat anecdotes, add details, speak “fluidly” and be “very natural.”