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Also , in too many instances the already over stressed US troops basically just go round up any gathering of young men they see on the corner and make them dissappear for one year . At other times they dissappear all together . The effect is a bit annoying at first , particularly since the first several pages have refresh times set at 3 seconds , so they dissappear before ( or just as ) one finishes reading them . In this talk we shall investigate this dissappearance ; we shall prove results which suggest that while the curves themselves dissappear under perturbation , they unwind to form a j-holomorphic foliation with an invariant area form . He was released by the U.S. and safe several days before he dissappeared .