The intrusiveness of new Federal health laws is endangering the privacy of patients and the doctor-patient relationship. Bob Browning explains.An elderly lady recently related a touching story on ABC talkback radio. Her husband of many decades had just been diagnosed with an incurable brain disease, and transferred to a hospice. In considerable distress, she told of receiving a letter from an estate agency she had never contacted nor had previously heard of. The gist of the letter was that it ha…