General Accounting Office
no
Citing its power to regulate businesses that engage in interstate commerce, Congress did apply the 1964 Civil Rights Act to employers larger than 14 employees. Congress established an investigative agency, the EEOC, and allowed individuakls and EEOC to sue in federal court.
The ICE agency enforces Cyber Law. ICE stands for Immigration and Customs Enforcement. ICE is the main investigative services of the United States Homeland Security and the second largest investigative agency in the government.
Congress
yes
They are implied in Article I, Section 1 of the Constitution
Yes, there is an actual naval criminal investigative service.
Congress isn't involved in the National Security Agency. However, it should be involved in order to regulate the agency.
investigative powers
They simply activate: The US Selective Service; it's already an agency.
acim
Congress can change a federal agency in any way it wants. It can create or abolish an agency, merge two or more, or split one into tow or more federal agencies. Congress can also define what an agency is authorized to do, and can change that whenever it chooses.