If a lone terrorist can wreak such havoc locally, we should have second thoughts about the ease of defeating a large, amorphous terrorist movement globally.

While Weston still held to his theory that a lone terrorist was responsible for Zanwood's death, he could at last see a motive for the murder.

The codes are simple - a name, a special word, a color - and are meant to signal that the call is not a hoax or the work of a lone terrorist.

According to professor Olivier Roy, Merah was a lone terrorist, unconnected with any militant group.

Ahead of them the lone terrorist with the parcel was getting into a taxi.

"And all of it has been done by the lone terrorist, Lugovoi."

On the road running along the beach, lone surviving terrorist of the 26/11 attacks, Ajmal Kasab was caught and arrested.

"When a lone terrorist can infiltrate a military camp with no trouble there is evidence of serious shortcomings in the basic duties of performance and alertness."

The lone surviving terrorist of the Mumbai attacks confirmed that the terrorists came from Pakistan, and that they were trained by Lashkar-e-Taiba operatives.

Today, a lone terrorist with a crude nuclear bomb can threaten or kill tens of thousands of people in a single act of destruction.