I have received the april Airwaves (The Balpa News and Campaign Brief) by e-mail yesterday... So it's as up to date as information gets, and there is no mention whatsoever of any challenge to CD.
Surely, the election for the post of General Secretary is about the most newsworthy issue that BALPA has at present, especially as there is a challenge underway.
It all smells a funny colour to me.
