Sam's new book, Humane: How the United States Abandoned Peace and Reinvented War ... The murky legal standing of the Forever War ... Obama’s transition from traditional war to “humane” war ... Are presidents incentivized to keep war going forever? ... Sam: The true face of war is domination, control, and security ... How Vietnam changed the US’s approach to war ... What drives the demand for more humane war? ... Americans’ rising skepticism of Forever War ...