I read up on Regular Expressions, can it handle reading through a string and get a social security # after it sees "SSN:"

So for example, an SSN would look like:

SSN: 5 5 5 - 5 5 - 5 5 5 5


I would like to grab all the underlined numbers and display them like this after I see SSN:

555-55-5555

Any ideas?

Chris