trade-off but almost half are making that trade-off going into those plans and we're still seeing howsehat plays out so that it explains. and we are about to get those are standard dates every year if you are in a private plane you can join one or change one. >> wide and then to be careful of medicare at age 65 or get penalties later and even with a former employer. >> those rules are complicated. if you are still working, part a is what comes automatically based on what you paid and when you are working. that is the part you paid for and that covers hospitals and that is the outpatient part it's notot paid for by the trust fund and then tell people weight when they are 70 or 75 and need more care but then if you are firstst eligible for part b it's in the first has to become eligible for social security so i will not wait if i'm getting employer insurance i don't have to sign up for part b. my mother retired at age 67 but the inside up not until she joined. there are a lot of complicated rules you have to be careful because ifse you miss your window and sign up late it is the additiona