under the title "'We're being pressured into sex by some trans women'" received substantial criticism as transphobic by the LGBT community, transgender-related charities, journalists, and BBC staff. Particular focus was put on the use of one source: cisgender lesbian adult film star Lily Cade, who the BBC had been informed prior to publication had been accused of multiple sexual assaults, and days after the article was published Cade wrote a blog post calling for the "lynching" of specific trans women. An open letter urging retraction gathered 20,000 signatures, while multiple protests took place outside BBC offices. Although the BBC article claims that several prominent transgender women were contacted for the story and "none of them wanted to speak to" the BBC journalist Caroline Lowbridge, transgender adult performer Chelsea Poe stated that this is "completely untrue", and that the interview she had with the journalist was excluded from the story, a claim supported by PinkNewss review of correspondence between Poe and Lowbridge, as well as a BBC source who said that Poe's interview was excluded due to an editorial decision that it lacked relevance. Safeguarding Impartiality in the 21st Century A report commissioned by the BBC Trust, Safeguarding Impartiality in the 21st Century, published in June 2007, stressed that the BBC needed to take more care in being impartial. It said the BBC had broken its own guidelines by screening an episode of The Vicar of Dibley that promoted the Make Poverty History campaign. The bias was explained as the result of the BBC's liberal culture. A transcript of the impartiality seminar is included as a separately published appendix to the report available via the BBC Trust. After press reports emerged that BBC employees had edited the Wikipedia article's coverage of the report, the BBC issued new guidelines banning BBC staff from "sanitising" Wikipedia articles about the BBC. Immigration and European Union In 2005, two independent reports deemed the BBC's coverage of the European Union to be rather inadequate and one of the reports noted a "cultural and unintentional bias". In July 2013, a report commissioned by the BBC Trust found that the organisation had been slow to reflect widespread public concerns about immigration to the United Kingdom and shifts in public attitudes towards the European Union. The report, by Stuart Prebble, stated that Helen Boaden, the former director of BBC News, had said that when she arrived at the organisation,