By co-incidence the other person who was refused admission to the Socialist Platform meeting on 14 September was the German journalist who was the author of the article from issue 941 of the Weekly Worker JohnD gives.From what she told us in the pub where we went instead, these are an unsavoury lot. Nasty people who break up other people's meetings. She specifically singled out "Platypus" as their English-language version.Incidentally, David Rovics has a hilarious song attacking the idea of a Vanguard (often played during the lunch-hour at our Head Office). It can be heard here:http://www.youtube.com/watch?v=dSeU9q6zyT4Here's the lyrics:http://lyrics.wikia.com/David_Rovics:Vanguard