In the 1980s, it was estimated that by 2030 the US social security system would be insolvent. To prevent this, it was suggested at the time that the retirement age be raised, but it wasn't until the year 2000 that this was actually done.
美國在一九八○年代，預期二○三○年社會保險制度會發生財務困難，提出延後退休的作法，但直到二千年才實施。