The application of u.s. standards to ethical issues that are clouded by cultural differences abroad is sometimes categorized as

I think the answer is overly idealistic.

No enumerated power has justified more exercises of congressional power than the Article I, Section 8 power to "regulate commerce among the several states." 

Reference:http://law2.umkc.edu/faculty/projects/ftrials/conlaw/congpowers.htm

 Also Article I,Section 8 Power to law and collect taxes; pay debts; provide for the common defense and general welfare of the United States