Bearish Bumbles

So here's a thing. There are various different pronunciations in American for things that we would normally think of as different in UK English. For example:

Missile is not Miss Isle but rather mistle. Which actually when pronounced that way in British English means "Bible"...

Im sure there's a lot more but the one that sprang to mind instantly was "The Bush Era" ... which is pronounced in US English to sound like "The Bush Error" in UK English - I wonder if this is deliberate?