In a final debate before the July 31 primary that will decide their fates as congressional candidates, the two men and one woman in a race to represent Georgia’s newest congressional district were on the defensive Sunday. Doug Collins, Roger Fitzpatrick and Martha Zoller all had to answer questions about their pasts in a debate sponsored by the Atlanta Press Club and televised by Georgia Public Broadcasting. The three Republican candidates for the new 9th District U.S. House seat all agreed on several issues raised in the debate.