90 percent
Congressional grants provided the significant of the amount
required for the interstate highway system. This system has profoundly impacted
the American economy and contributed significantly to improved economic productivity.
The system encouraged development by making land less expensive and available
to the nation's transportation system.
I pretty sure It cuold be the " Protecting human rights"
You betcha! a lot of people left because the land became usless, so many farmers( oklahoma familys)migrated to CA and other states, finding their ecomnimics and conditions better :)
