Yes, as far as I know. Military definitely pays into Social Security, so I would assume ALL government employees do.
Both. Employers and employees contribute an equal percentage of the employee's income to Social Security.
Yes that is correct.
employers and employees both have to contribute equal amounts of money into the Social Security Trust Fund
the people and employers
NO
No, employers are required to check Social Security numbers.
taxes on employers and employees.
Yes, you can contribute to a 401(k) and still collect Social Security benefits. Your 401(k) contributions do not affect your eligibility for Social Security benefits.
Employers that have salaried employees have to be registered with the Social Security administration as an employer - this gives limited ability to access an applicants social security returns - which will have a basic employment record.
Social Security Act
Payroll taxes on employers and employees.
Yes, all employers are required to get a Social Security Number and validate the citizenship of all employees. Even minors have to provide proper information.