FYI:
Banks cannot and are not required to seize an account if it is just dormant for a few years. They are first required to contact you. If they successfully contact you (be it by phone, mail, whatever) they cannot do anything with your accounts. If, however, they cannot find you they are required by law to give your money and account information to the state government. The state government is then required by law to again try to find you. Sometimes you may even see classified ads put in the paper by your state government saying they have accounts/property and are looking for owners. The state will hold your money indefinitely and you are able to claim it anytime.

In my mind, this is a good regulation because without it the banks would just keep your money and not bother to try to find you. I'd rather my money go back to the state government which is a.) more accountable and b.) if the money is never claimed they can use the money for the good of the state instead of the bank.

ps. Most states have online databases with this information that you can freely search through. Just go to google and search for "unclaimed property" plus your statename.