An Obama-era regulation aimed at improving accountability at for-profit colleges is heading to the chopping block. We learn more about the implications of the change. Also, Chinese artist and dissident Ai Weiwei has a new exhibition in Provincetown, Massachusetts, in which he combines marble and twisted rebar salvaged from the ruins of the 2008 Sichuan earthquake to memorialize the more than 5,000 children who died there. The exhibit comes on the heels of the Chinese government’s destruction of Ai’s iconic studio in Beijing, to create a shopping mall. Here & Now’s Robin Young talks with Ai. And as the use of legal medical and recreational marijuana grows in states across the country, some big food and beverage companies are looking to get in on the action. That and more, in hour two of Here & Now’s Aug. 20, 2018 full broadcast.