; and (2) not to exceed $20,000 may be expended for the training of the professional staff of such committee (under procedures specified by section 202(j) of that Act). (e) Investigations (1) In general The committee, or any duly authorized subcommittee of the committee, is authorized to study or investigate— (A) the efficiency and economy of operations of all branches of the Government including the possible existence of fraud, misfeasance, malfeasance, collusion, mismanagement, incompetence, corruption or unethical practices, waste, extravagance, conflicts of interest, and the improper expenditure of Government funds in transactions, contracts, and activities of the Government or of Government officials and employees and any and all such improper practices between Government personnel and corporations, individuals, companies, or persons affiliated therewith, doing business with the Government, and the compliance or noncompliance of such corporations, companies, or individuals or other entities with the rules, regulations, and laws governing the various governmental agencies and the Government's relationships with the public; (B) the extent to which criminal or other improper practices or activities are, or have been, engaged in the field of labor-management relations or in groups or organizations of employees or employers, to the detriment of interests of the public, employers, or employees, and to determine whether any changes are required in the laws of the United States in order to protect such interests against the occurrence of such practices or activities