[wideminded]

Since the Constitution prohibits appropriations for a period longer than 2 years these ten year plans are ALL BULL DROPPINGS

The Constitution only explicitly prohibits appropriations to the Army and Navy than are of a longer term than two years. (Article I, Section 8).

As I recall there are court cases that limit the ability of one congress to tie the hands of later congresses, but I don't know the details of this.

[muawiyah]

No doubt there are USSC rulings on the matter ~ but logic dictates that for the House to use its authority as identified in the Constituion they are not bound by previous Congresses.

That sets an upper bounds on any appropriation.