Any time a private company is involved in anything they are involved because they will make big profits from it. This type of arrangement will end up costing taxpayers more as many (if not most) of the roads built will be toll roads. Instead of spending money on Trump's stupid Wall-take that $25 billion and apply it to imporving the infrastructure. If I remember correctly Trump promised that the fed. gov. would be investing in infrastructure improvement, now it seems that that promise was just one more lie.