 Intelligence bulletins obtained by ABC News detailed serious concerns not only about the New York fireworks, but about Independence Day celebrations in San Francisco and in Las Vegas. And a leading concern is that some lone offender is going to turn to violence without warning. But there's no indication of an organized plot, and as the mayor here says, the whole city is going to be enjoying Fourth of July. California facing its longest heat wave in nearly two decades. You're listening to ABC News.