As with most of Donald Trump's policy ideas, details are still sparse on his plan for rebuilding America's crumbling infrastructure. But two main pillars of the plan, outlined during the election campaign, stand out. First, he's talking a big game -- a proposed $1 trillion in infrastructure investment to be "spurred" over 10 years. Second -- and here's the rub -- the Trump plan would move to privatize infrastructure on an unprecedented scale, lining the pockets of investors with huge tax breaks in the process.