Answer:
The Executive Branch
Explanation:
Executive Branch of the U.S. Government. The executive branch carries out and enforces laws. It includes the president, vice president, the Cabinet, executive departments, independent agencies, and other boards, commissions, and committees.
Explosive materials - because they might explode in the mail
Anger
Furious
Upset
Harmed (Not in the Physical way)
A section in the cabinet department is An authority.