Well if I put on my tinfoil hat, then there is no protection from the NSA. So, now I'm only trying to protect my password/identity from criminal elements, I tend to side with Google as knowing what they are doing. It doesn't mean they will also be mistake free, but it is something they deal with and have been dealing with before LastPass was even an idea.

When you've put your passwordfile in the cloud, you should assume it's fallen into the wrong hands (NSA) already.

I've put my keepass file in the cloud for extra backup, and I know I can only rely on its cryptographic strength to keep it safe.