The main purpose of the Food Assurance and Security Act is to create a program that measures food security and hunger in the United States. This program will be established by the Secretary of Agriculture in collaboration with the Director of the Bureau of the Census. The goal is to collect and analyze data on food insecurity, which can help inform policies and programs aimed at addressing hunger. Key provisions of the Act include the requirement for an annual collection of data on food insecurity through the Current Population Survey.