the Securities and Exchange Commission
executive
Either the FBI or nobody because they have bigger fish to fry.
Usually NSA of FBI, if it is an international non American hacker CIA might get involved. IF a specific agency is targeted then that agency would usually get involved like if CID was targeted then they would most likely help investigate
The Department of Housing and Urban Development (HUD) would most likely deal with preventing families from losing their homes.
The Department of Veterans Affairs (VA) would most likely deal with increasing education benefits for military veterans.
"I formulated a policy that Congress then debated."
The Department of Homeland Security (DHS) would most likely deal with providing tools to the community to gather information about terrorists.
They're not "allowed" to, but diplomatic immunity generally protects them from prosecution for such acts. A "diplomat" who was caught performing espionage would likely be expelled.
A behavioral psychologist is most likely to investigate the principles of learning, as this field focuses on how learning and behavior are influenced by the environment.
The United States Environmental Protection Agency deals with controlling air pollution (as well as water, land, endangered species, and hazardous waste issues) on a national level. It was proposed by President Nixon and began operating on December 2, 1970, after President Nixon signed an executive order.
The Department of Defense (DOD) would most likely deal with increasing the number of police officers, funding for prisons, and crime prevention.
An ad hoc committe PLATO