As an example of just how big this is, the BBC, which rarely talks about US Politics, had Akin's comments as one of the lead headline stories for the six o'clock news. I just checked a second ago and they're doing an extended interview with their US correspondents over just how damaging Akin's remarks were.
I originally saw heard about this controversy as one of the top six BBC stories at the airport.
Romney has now called on Akin to get out, for what little that's worth.
I actually think it's worth quite a bit. Now I think he may actually leave the race. Having your party's presidential candidate calling for you to get out is close to the last straw.