Retirement Survivors And Disability Insurance (RSDI) is a program run by the Social Security Administration in the United States. It provides benefits to retirees, their survivors, and people with disabilities. Retirement benefits are paid to individuals who have worked and paid Social Security taxes for a certain number of years. The amount of the benefit is based on the individual's earnings history. Survivors benefits are paid to the family members of a deceased worker, including widows, widowers, and dependent children. Disability benefits are paid to individuals who are unable to work due to a medical condition that is expected to last at least one year or result in death. These benefits are intended to provide financial support to individuals and families in times of retirement, disability, or the loss of a primary wage earner. The eligibility criteria and benefit amounts can vary based on individual circumstances. It's important to note that RSDI is specific to the United States, and other countries may have different programs and systems in place to provide similar types of support.