21.   He was arrested in Semipata, Bolivia, on Tuesday after Oakland police tracked the suspect on the Internet and passed his location to FBI agents in Chile.

22.   However, because of streamlining, agents can now get a single order to track a suspect using multiple communications companies across the country.

23.   Hundreds of people in Australia, Britain, Germany and New Zealand were interviewed and computers sifted evidence to track the suspect.

24.   Investigators tracked the suspects to an apartment near Leipzig, which they searched in late July.

25.   The arrest came amid an ETA bombing wave in Spain, and was the fruit of stepped-up cooperation between Madrid and Paris in tracking ETA suspects.

26.   The newest suspects were tracked down through phone records showing that the suspected bombers had been in contact with them, the sources said on condition of anonymity.

27.   The suspects were ultimately tracked to a home in Bogota, Colombia.

28.   The tribunal has been severely criticized for being slow to track down suspects and bring them trial.

29.   What it does not have, by its own admission, is a police force capable of tracking down suspects ... and bringing them before the court.

30.   But Sanaa sought to play down the importance of the US role in tracking down suspects and Washington appeared to accommodate local susceptibilities by remaining vague on detail.