On Wednesday, President Joe Biden regaled the nation with another family tale, this time insisting that his uncle Ambrose Finnegan — whom he called “Uncle Bosie” — may have been eaten by cannibals. It is a fact that Finnegan disappeared in New Guinea after his plane went down during World War II. Military records state that Finnegan’s plane went down in the Pacific Ocean and his body was never recovered, the New York Post reported. During a campaign trip to Pennsylvania, Biden told reporters that his uncle’s Air Force plane was “shot down” during a “reconnaissance flight over New Guinea.” “H…