More empty threats? Probably. The problem is that years can go by that are utterly filled with empty threats, and then the jihadists can strike again. Remember the interval between the 1993 WTC attack and the one in 2001. From the Stamford Advocate, with thanks to A Friend:
The FBI has alerted police about vague, unverified reports of a possible plan to attack power plants and electric grids around New York City this month, according to a confidential FBI memo.
The memo, written by the FBI and the U.S. Department of Homeland Security and read by The Advocate, warns of a written threat from a single source that New York-area power plants will be attacked this month.
The memo stresses that federal authorities have not corroborated the threat. The memo includes a composite sketch of a Middle Eastern man who may be trying to enter the United States this month to participate in the attack….
The police officers said the department receives regular warnings from federal authorities. But this memo is unusual because it names a person and includes a sketch, they said.
Bull said sketches are becoming more common in FBI memos to police.
The memo does not say how a power plant would be attacked. The written threat mentions the possibility of “great news in June,” according to the memo.
Police and power company officials have paid more attention to electric power plants since August 2003, when a malfunction at Midwestern power grids caused a blackout across eight states, including Connecticut, and much of Canada.
Al-Qaeda, if my memory serves me well, claimed credit for that, too.