And you have to figure that, staunch libertarians that they are, they will find a way to extract subsidies from the taxpayer to do this:

Amid rumors that Charles and David Koch will be withdrawing their presence at the Republican National Convention, it has been revealed the billionaires have been funneling money into an Arizona-based group fighting a plan to ban uranium mining around the Grand Canyon, which would also protect 1.7 million acres of land.

The proposal is supported by 80% of Arizona residents, environmental groups, and native tribes, the Guardian reports. Yet, Greg Zimmerman of the Center for Western Priorities has found that a non-profit group, the Prosper Foundation, is fighting to block the move. The group received 83% of their total budget, over $1.5 million, from an organization called American Encore.

Zimmerman, digging deeper, found that American Encore is run by one Sean Noble, a man with very close ties to the Koch brothers. A donor from a Koch brothers’ “dark money” funding network has also channeled cash to the group.

“Prosper, which was formed in 2013, covers nearly its entire budget with funds from Koch-backed American Encore—formerly known as the Center to Protect Patient Rights. According to tax filings, American Encore has funded 83 percent of Prosper Inc.’s total budget since its creation, donating over $1.5 million to the organization in 2013 and 2014,” Zimmerman wrote for ThinkProgress.

What a surprise.

I can think of no better reason for increasing the inheritance tax than these guys, who seem to think that they to deserve to run the world because they won the birth lottery.