> It's still wise to at least consider the possibility of a bank failure, qv Northern Rock.
Most industrialized countries have insurance of bank deposits up to a certain point. So even if the bank goes poof your savings are still safe.
It would simply be prudent to have money in more than one bank (or credit union), as if something bad happens then things may get chaotic in the short term.
It's still wise to at least consider the possibility of a bank failure, qv Northern Rock.
Grandparent comment's advice about keeping an overseas investment is wise, too; as a Brit I've not regretted having US investments.