After Facebook’s removal of an iconic Vietnam war photo stirred an international uproar last month, the social network’s executives quickly backtracked and cleared its publication.

But the image – showing a naked Vietnamese girl burned by napalm – had previously been used in training sessions as an example of a post that should be removed, two former Facebook employees told Reuters.

Trainers told content-monitoring staffers that the photo violated Facebook policy, despite its historical significance, because it depicted a naked child, in distress, photographed without her consent, the employees told Reuters.

The social network has taken great pains to craft rules that can be applied uniformly with minimal discretion. The reversal on the war photo, however, shows how Facebook’s top executives sometimes overrule company policy and its legions of low and mid-level content monitors.

Facebook has often insisted that it is a technology company – not a media company – but an elite group of at least five senior executives regularly direct content policy and make editorial judgment calls, particularly in high-profile controversies, eight current and former Facebook executives told Reuters.

Facebook has long resisted calls to publicly detail its policies and practices on censoring postings. That approach has drawn criticism from users who have had content removed and free-speech advocates, who cite a lack of transparency and a lack of an appeals process for many content decisions.

Palestinian activism censored

More recently, Palestinian activists and media professionals have found their comments not just censored, but entire accounts disabled for no apparent reason.

Last month, Facebook disabled the accounts of editors at two of the most widely read Palestinian online publications, Shehab News Agency and Quds. In keeping with standard company practice, Facebook did not publicly offer a reason for the action or pinpoint any content it considered inappropriate.

Some Palestinian advocacy groups and media outlets condemned the shutdowns as censorship stemming from what they described as Facebook’s improper alliance with the Israeli government.

Israel has pushed Facebook to block hundreds of pages it believes incite violence against Jews, said Noam Sela, spokesman for Israeli cabinet minister Gilad Erdan. Sela said Israeli “had a connection” at Facebook to handle complaints but declined to elaborate on the relationship.

“It’s not working as well as we would like,” Sela said. “We have more work to do to get Facebook to remove these pages.”

Ezz Al-Din Al-Akhras, a supervisor at Quds, said that Facebook’s head of policy in the Middle East had gotten in touch after the uproar over the shutdowns and that three of four suspended accounts were restored.

“We hope the Facebook campaign of suspending and removing Palestinian accounts will stop,” he said. “We do not practice incitement; we are only conveying news from Palestine to the world.”

Facebook said the restoration of the accounts was not a response to complaints. It declined to comment on whether top executives were involved.