Enforce laws regarding consumer protection through telecommunication.
The FHA, or Federal Housing Authority is the responsibility of the Federal Government.
Try federal cases in the federal courts
Animal welfare is the responsibility of the state government. However as the federal government must have responsibility in the case of live export.
minting coins
All of the above :)
the FEC
Federal Reserve System
To declare war
Counterfeit money
medicaid and medical
regulating competition in the marketplace. -- A+
interpreting laws