LOS ANGELES (Reuters) - A federal appeals court has reversed itself and temporarily reinstated the "Don't Ask, Don't Tell" policy on gays in the military, but it has blocked the Pentagon from significant enforcement of the policy. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=W2BhMqkib3A:JwAsy0e9OEw:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=W2BhMqkib3A:JwAsy0e9OEw:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/W2BhMqkib3A)