President Bush issued a formal national security directive yesterday ordering agencies to prepare contingency plans for a surprise, “decapitating” attack on the federal government, and assigned responsibility for coordinating such plans to the White House.

The prospect of a nuclear bomb being detonated in Washington without warning, whether smuggled in by terrorists or a foreign government, has been cited by many security analysts as a rising concern since the Sept. 11, 2001, attacks.

Many potential jurors in the Jose Padilla terrorism-support case say they aren’t sure who directed the Sept. 11, 2001, attacks because they don’t trust reporters or the federal government.

“There are too many ifs, too many things going on,” one male juror said. “I don’t know the whole story.”

Others say they just don’t pay close enough attention to world events to be certain.

A State Department report on terrorism due out next week will show a nearly 30 percent increase in terrorist attacks worldwide in 2006, to more than 14,000, with almost all of the boost due to growing violence in Iraq and Afghanistan, U.S. officials said Friday.

The annual report’s release comes amid a bitter feud between the White House and Congress over funding for U.S. troops in Iraq and a deadline favored by Democrats to begin a U.S. troop withdrawal.

The Marine Corps chain of command in Iraq ignored “obvious” signs of “serious misconduct” in the 2005 slayings of two dozen civilians in Haditha, and commanders fostered a climate that devalued the life of innocent Iraqis to the point that their deaths were considered an insignificant part of the war, according to an Army general’s investigation.

French secret services produced nine reports between September 2000 and August 2001 looking at the al Qaeda threat to the United States, and knew it planned to hijack an aircraft, the French daily Le Monde said on Monday.

The newspaper said it had obtained 328 pages of classified documents that showed foreign agents had infiltrated Osama bin Laden’s network and were carefully tracking its moves.

Le Monde said the French report of January 2001 had been handed over to a CIA operative in Paris, but that no mention of it had ever been made in the official U.S. September 11 Commission, which produced its findings in July 2004.