the r.a.c.'s are not but the m.a.c. contractors do work very closely with providers in all their regions to teach them about try to jews along the way they do identify educational needs or clarity deficiencies that we can address through other contractors or directly. >> thank you very much. mr. chairman thank you for this hearing. when -- perhaps because medicare is necessarily costly program i say necessarily we do the best we can to provide maximum care for the elderly when they are ill. there is particularly concern when there are reports and there are always quite sensational reports of fraud or particular abuses in the program. i note that the affordable health care act gave the c.m.s. several new at least expanded authorities to deal with fraud. i would be very interested in hearing about how you deal with those at higher risk and how you deal with them when they apply -- when it applies to providers and suppliers who are newly enrolling and those who want to revalidate their participation in the program. >> sure