Happy days are here again

A car driven erratically in the middle of the night in the West End; driver runs away; police alerted; gas canisters and possibly nails (unconfirmed) removed from the car at about 4 am; one source saying that the implements would have made a large and serious explosive device, another that it was really very small, whatever it was. And, above all, hours later a still chaotic situation around Piccadilly with Piccadilly Circus closed during the rush hour. Here we go again.