It's a bit difficult to tell with zero context, but I presume that 'Digger Down' is a salad munching ecomentalist
In which case it is unlikely to be TB as he isn't, and besides, wouldn't go to Lundun unless work offered to sack him if he didn't go...
I haven't been to Londonium since Monday, and certainly wouldn't go near that utter waste of everyone's money* called HS2. Get enough of their shit** without explicitly visiting them.
*about £2000 per person, irrespective of their working status to build, and about £1500 per person per year to subsidise its running. Based on HS2 Ltd's own figures. And thats for Phase 1 (to Lichfield) only. Not including associated costs....
**...additional accidents due to all the shit all over the roads here, all the mess and thieving the pikeys employeed to build it leave, all the extra fencing off of any green space here to stop caravans parking. Which all means extra council tax and insurance hikes.