Story highlights Last week, Khizr Khan, a Harvard-trained Gold Star father, said that Donald Trump did not understand the meaning of true sacrifice. Khan asked Trump. Charles Kaiser: At a pivotal moment in American history, Khan's comment may be the reason it also becomes a righteous one. Charles Kaiser is the author of "1968 in America," "The Gay Metropolis" and, most recently, "The Cost of Courage." "Go look at the graves of the brave patriots who died defending America -- you will see all faiths, genders and ethnicities.

Source: CNN August 01, 2016 23:48 UTC