Boris Johnson versus the travellers

So here in London we have a new mayor, the floppy-haired Conservative Boris Johnson (pictured below). I didn't vote for him. And yesterday's London Lite gave a good reason why I was right not to do so:

The Mayor has already announced plans to ban travellers from drinking alcohol on the Tube and to begin installing airport-style scanners in stations

I dunno, he's only been mayor two minutes and he's already picking on the Pavees...