Tracking The Guardian anonymous sourcing

5/17/2016: I worked on Facebook’s Trending team – the most toxic work experience of my life

Working at Facebook, even as a contractor, was supposed to be the opportunity of a lifetime. It was, instead, the most toxic work experience of my life.

The entire piece is written by an anonymous source.

4/21/2015: Isis leader Abu Bakr al-Baghdadi ‘seriously wounded in air strike’

The leader of Islamic State, Abu Bakr al-Baghdadi, has been seriously wounded in an air strike in western Iraq, sources have told the Guardian.

A source in Iraq with connections to the terror group revealed that Baghdadi suffered serious injuries during an attack by the US-led coalition in March. The source said Baghdadi’s wounds were at first life-threatening, but he has since made a slow recovery. He has not, however, resumed day-to-day control of the organisation.

Status: Unverified

3/9/15: Hillary Clinton eyes campaign launch in early April with plans to staff up in Iowa

Hillary Clinton is closing in on April 1 as the operational start date of her long-awaited presidential campaign, multiple sources with knowledge of Clinton’s growing operation in Iowa have told the Guardian.

Status: Clinton announced her bid for the White House on April 12.