On one of the first foreign trips I took with John McCain, he handed me his comb and asked me to straighten out his hair. He could not raise his arms above his shoulders to comb his own hair, a lifelong consequence - and not the only one - of the abuse he suffered during his more than five years in a North Vietnamese prison.
Years later, I traveled to Hanoi with McCain and visited that prison, which is now a museum. A group of Vietnamese high school students came through and when they recognized him, they began chanting his name, cheering, clapping and asking for pictures and autographs.