An Italian judge on Wednesday convicted 23 Americans of the 2003 kidnapping of an Egyptian cleric on a Milan street, in a landmark case involving the CIA’s extraordinary rendition program in the war on terrorism.

A small bomb exploded early Friday outside the home of a prominent Greek conservative politician in Athens, causing damage but no injuries, police said.

Attorney General Eric Holder said Tuesday the alleged terror plot disrupted in New York was “one of the most serious in the United States since Sept. 11, 2001” — but he gave no indication when more arrests might be made.

President Barack Obama thanked counterterrorism employees who work to prevent attacks on the United States and its allies, crediting them with “making real progress” in disrupting al-Qaida and other extremist networks.

New operation includes the FBI and the U.S. Department of Homeland Security, as well as State Police, the Virginia Department of Emergency Management, the National Guard and state Fire Programs Department.

Close cooperation between military and civilian authorities is being credited with thwarting a plot to attack U.S. military personnel at the Quantico Marine Corps base. An indictment handed down Thursday by the U.S. attorney’s office for the Eastern District of North Carolina alleges that Daniel Patrick Boyd and Hysen Sherifi got maps of the base to plan an attack on Quantico.

Najibullah Zazi went from Pakistan to suburban Denver beauty shops in a hunt for the supplies and skill to make hydrogen peroxide bombs for al-Qaida, authorities charged in papers describing one of the most significant post-9/11 terror threats to the United States.

Federal prosecutors say two North Carolina terrorism suspects plotted to kill U.S. military personnel.

Terror suspect Najibullah Zazi has been indicted on a charge of trying to detonate bombs in the United States.

Greek police arrested four people Thursday on suspicion of involvement in a militant group that detonated a bomb outside the home of a prominent opposition lawmaker the previous day.

Counterterrorism officials have issued security bulletins to police around the nation about terrorists’ desire to attack stadiums, entertainment complexes and hotels - the latest in a flurry of such internal warnings as investigators chase a possible bomb plot in Denver and New York.

Suspected Islamist militants blew up a girls school close to the main city in northwestern Pakistan on Tuesday, police said. The school was empty at the time of the blast and no one was injured.

Suicide bombers in two explosives-laden cars with U.N. logos drove onto the main base of African Union peacekeepers Thursday and triggered massive blasts reportedly killed at least 11 people. Islamist insurgents said the attack was in revenge for a U.S. commando raid that killed an al-Qaida operative.

Noordin Muhammed Top, a militant mastermind who eluded capture for nine years and terrorized Indonesia with a string of deadly al-Qaida-funded bombings, was killed during a raid in central Indonesia, the country’s police chief said.

On Dec. 26, 1941, Winston Churchill addressed a joint session of Congress. Only a few weeks before, Japan had struck Pearl Harbor. Churchill came to the United States to discuss war-planning with Franklin Roosevelt. In his congressional speech, the British prime minister gave an honest appraisal of the military outlook. He depicted the challenges and described the necessary sacrifices but expressed his confidence in the Allied cause.