Glad you made it safely across the water, albeit in a World War II bomber aircraft. I see no reason why you shouldn't go to London - the chances of any of us being involved in an incident are the same as being struck by lightning, and my philosophy is what's for you won't go past you. You go and charm those London boys and take their minds of the unpleasantness of Thursday. Sounds like the hotel you're in is part of a budget chain, similar to the Travelodge one I stayed in Aberdeen last year. It had no telephone either, so when I asked if I could have a morning call, they gave me an alarm clock!
Welcome to the United Kingdom