The bubonic plague was a painful disease, with black buboes, or swellings, in the groin and armpits, which lasted up to a week. There was some chance of surviving if the buboes burst.
As of 2015, full retirement age is 67 if you were born after 1960. The amount you receive doesn't change because disability benefits were calculated based on what you would receive at retirement age. However, you may see an increase if Social Security provides a cost of living increase.
The exact amount of the reduction is based on your years of substantial earnings covered under Social Security and adjusted every year. In 2014, the maximum reduction in Social Security benefits under the Windfall Elimination Provision is $428 per month if you were age 62 in 2016. If you earned at least 40 Social Security credits through other employment, you should apply for Social Security, even though you may receive a reduced Social Security benefit.