<Li> 1965 Medicare health care benefits added to Social security--20 million joined in three years </Li> <Li> 1966 Medicare tax of 0.7% added to pay for increased Medicare expenses </Li> <Li> 1972 Supplemental Security Income (SSI) program federalized and assigned to Social Security Administration </Li> <Li> 1975 Automatic cost of living adjustments (COLAs) mandated </Li>

What is not a major component of social security