Answer:
Life expectancy has been steadily increasing.
A record number of individuals are expected to retire over the next two decades.
Explanation:
There is increasing need for social security and Medicare share of the Federal budget because of the growing population of people that need these services.
Beneficiaries are those that have low income and need support and medical care.
Two factors have been identified as being responsible bfor this increase. That is increased life expectancy and larger number of people that will retire in the next two decades.