past. because there is already the warning that rolling blackouts are going to happen across the nation. we are having some communication problems here. as we work to find out two things. one, about the siren going on in downtown tokyo and, two, about the explosion at reactor number two, i'm going to toss back to jon scott in new york and we will be right back here live to tokyo. >> jon: shepard smith reporting live from tokyo. again, the most ominous news of the hour just within the last few minutes that reported explosion at the number 2 reactor vessel at japan's stricken nuclear plant. we will continue to cover the situation there from new york as well as from tokyo. back in just a moment.