Once you have enabled AI Servo mode and selected the correct focus points (if you want to adjust them from how the camera is currently set up), the only control you need is the shutter button -- just pressing this halfway will enable focus tracking on the focus points that are enabled.
The Social Security Act was enacted August 14, 1935. The Act was drafted during President Franklin D. Roosevelt's first term by the President's Committee on Economic Security, under Frances Perkins, and passed by Congress as part of the New Deal.
In response to the petition, Congress passed the Social Security Act. Social Security Board Poster. The Social Security Act established Old Age and Survivors' Insurance that provided for compulsory savings for wage earners so that benefits may be paid to them on retirement at 65. To finance the scheme, both the employer and employee had to pay a 3% payroll tax.