they did not ask me, but there was about two weeks time in between the interview and my start date, with the background check completion and short orientation/paperwork signing having about a week in between them. if you want, you could bring it up when they call you in for orientation.

They'll probably ask, but you can definitely tell them you need to put your two weeks in at your current job before starting. It's understandable and shows that you are a responsible employee.