FLOWERY BRANCH — Falcons cornerback Dunta Robinson never questioned Atlanta's offseason trade for Asante Samuel. Robinson, a ninth-year veteran in his third season with Atlanta, was the undisputed leader of the team's secondary when Samuel, one of the NFL's most talkative players, arrived last spring. It didn't take long for Robinson to embrace a teammate with two Super Bowl rings and four trips to the Pro Bowl."We are a very close bunch as a secondary," Robinson said on Friday.