I've never used ATM machines, because I don't see how they can be made secure. If you really have to use one, then use one that's in a bank (preferably *inside* the bank, not on the outside).
And a recent article by Brian Krebs shows you why I feel this way.
It's partly the ease with which a large number of ATM machines have been compromised - the crooks get all your card details, and after that, anything that you had in your bank account silently vanishes.
And it's partly the very relaxed attitude that people who look after ATM machines, take in regard to security.