PITTSBURGH (AP) — While the Kecksburg UFO sighting has become a quaint part of local lore, more recent reports of unexplained aerial phenomena are getting serious attention from Congress, the U.S. military and longtime UFO watchers.

"It's not going away," said retired journalist Bob Gatty. "Whether you believe or don't believe in this stuff, the fact remains there is a lot happening for some reason."

Gatty, who originally reported on the Kecksburg incident for the Tribune-Review in 1965, recently noted on his blog NotFakeNews.biz that the Navy has issued new guidelines to fighter pilots regard...