Paralyzed Long Island vet stands, gets Obama bear hug

JERUSALEM — She was the surprise star attraction in an exhibit of the latest in Israeli technology.Theresa Hannigan, a paralyzed retired U.S. Army sergeant from Long Island, found herself bear-hugged by President Obama Thursday as she showed how she regained the power to walk.Hannigan suffers from a neurological auto-immune disease, but with ReWalk, a $60,000…