I'm confident of what I have to achieve in the buildup to London 2012.

I've had a lot of success over the years racing in New York, but the main point is that I feel the marathon is a different event, a lot more my event.

We, as athletes, have our suspicions about who's cheating, but I'm not convinced that the testing has yet caught up with what people are using or what they are using to disguise it.

I start planning then that's dangerous because then I have a target that I'm blinkered towards and I won't listen to the warning signs quite so much. I'd rather be in shape and then look around and say there's a race next week and jump into that than have it planned.

The biggest danger is trying to put too much pressure on yourself, trying to get in too good shape.

Yeah, ideally, I'd probably wish to be more anonymous. But scrutiny and success go together. And I want to be successful.

I set myself some specific goals, but the key one is just getting myself into as good a shape as possible for one day this year: the Olympic marathon.