Answer:
because it could be counted as illegal
Explanation:
National policy act of 1969
It outlined, for the first time, a formal declaration of national environmental policies and goals.
It required federal agencies to prepare and submit environmental impact statements for most federally funded programs
It created the Presidential Council on Environment within the executive office.
Examples of command economies as of 2015 include the former Soviet Union, China, North Korea and Cuba
Explanation:
In the turmoil surrounding the unpopular Vietnam War, lowering the national voting age became a controversial topic. Responding to arguments that those old enough to be drafted for military service, should be able to exercise the right to vote, Congress lowered the voting age as part of the Voting Rights Act of 1970.