Ukuleles are undesirable instruments???

This story on the Guardian made me seeth - Transport for London supposedly cracking down on busking and classing the banjolele as an "undesirable instrument"???

These buskers need our support - I'm passionate about keeping the busking tradition going (I have done it myself when a student), and over the last few years TfL have made things tougher and tougher.

Now to have a supposed list of "undesirable instruments" is just nuts

http://www.guardian.co.uk/music/musicblog/2010/aug/31/transport-for-london-buskers