Al Qaeda has regrouped and is said to be plotting smaller attacks against American targets.
He warned that "loose and decentralized networks of terrorism are still finding recruits" to plot attacks against Americans.
The authorities say extremist groups have plotted attacks on Western targets.
American officials say some of those arrested were plotting terrorist attacks in Europe and elsewhere.
The cell was active as early as 1978 in plotting terrorist attacks.
But they are trying to influence public opinion and are plotting violent attacks against the new government with that aim.
They pretend to plot terrorist attacks when they know they are under surveillance.
They met three or four times a week to discuss their anti-American feelings and to plot possible attacks.
Terrorists also plotted major chemical and biological attacks against this country.
They identified the five wanted terrorists, about whom little was known but who were suspected of plotting additional terrorist attacks in martyrdom operations.