Some chaps 'associated with' F4J have apparently been arrested trying to get onto the runway at Heathrow this morning, reports the Telegraph. It has been suggested by Matt O'Connor that they may have been trying to 'steal back the mantle' from the Plane Stupid protesters. It's unclear from the piece I've read whether he purports to speak with authority or whether F4J have endorsed or claimed this action. It seems to be a splinter group, but then why the commentary from O'Connor? He certainly sounds from the quote to have been forewarned of the likelihood of forthcoming stunts.
Whatever the precise affiliations of those involved this mantle stealing jolly is pointlessly competitive. Juvenile. Egocentric. Unlikely to do the cause any favours. And irrelevant (why an airport for goodness sake?). Plain Stupid.