The article goes on to say that "the danger of attack is growing because of increased "chatter" picked up through intelligence channels". This probably means that the government has detected more frequent incidences of the use of certain key words among the zillions of phone, fax and internet communications it monitors.
A little known fact is that the code-word that Osama's followers use to refer to a bomb is "Jacouzzi". This leads one to speculate that the communications responsible for this heightened sense of threat may have inadvertently come from this forum's very own Mudchat chatroom. In the interest of national and world security, we kindly request that Oakley et al use the term "hot tub" in future virtual drunken orgies.