That what things can happen in London? That there are spies being bumped
off with radioctive substances, or that dust could cause suspend one of our
railway lines?

I don't know which is more unbelievable, to be honest.

He-he, I meant all that spy and radiation scare. I'm Russian myself,
and it is quite scary to think that long arm of mother-land can reach
me here so easily (I'm not a spy though - just a software developer).

As for Waterloo & City line - I guess that was dust from weekend
repair/construction works. It could be something toxic, and they didn't
clean it in time. Late finish of engineering works - now that is
something totally believable ;-)