BROWNVILLE, Neb (Reuters) - A top regulator said on Sunday that a nuclear power plant threatened by flooding from the swollen Missouri River was operating safely and according to standards. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=N0DsEqeJth8:08F5VXD9wO4:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=N0DsEqeJth8:08F5VXD9wO4:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/N0DsEqeJth8)