Who is Piero Cremona from The Tears of Autumn and what is their importance?

Piero Cremona is a columnist for the Italian communist newspaper L'Unità, Cremona approaches Paul Christopher and Molly in a restaurant after the Ngos' assassination and observes that "the imperialist eagle" has again devoured its young. Everyone had known the coup was coming because there is a man of action in the White House. The joke of a South Vietnamese army will fail, and the U.S. Marines will come to the rescue.