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.
However, the widespread suffering caused by the Great Depression brought support for numerous proposals for a national old-age insurance system. On January 17, 1935, President Franklin D. Roosevelt sent a message to Congress asking for social security legislation. The same day, Senator Robert Wagner of New York and Representative David Lewis of Maryland introduced bills reflecting the administrationâs views.