US intelligence

After the death of Osama bin Laden earlier this year, the man who took his place as al Qaeda’s chief, Ayman al-Zawahiri, vowed to avenge bin Laden’s death with an attack on the US. Now, intelligence officials believe at least three people entered the country in August with the intent of launching a vehicle-borne attack against Washington, DC or New York around the time of the anniversary of 9/11.