Who is the current United States Secretary of Agriculture?

The correct answer is Tom Vilsack, who has been the U.S. Secretary of Agriculture since March 2021, marking his return to the position after previously serving during the Obama administration from 2009 to 2017. Vilsack's extensive experience in agricultural policy and his role in promoting U.S. agricultural exports are significant aspects of the position he holds.

Sonny Perdue and Mike Johanns are former Secretaries, while Brooke Rollins has held other roles in government but is not the Secretary of Agriculture. Understanding the current leadership in agriculture is crucial for those involved in the food systems and management sector, as it affects policies, funding, and regulations that impact the industry.