11.   The entire operation lasted more than two hours without arousing suspicion.

12.   The entire operation lasted more than two hours without ever arousing suspicions.

13.   The operation lasts about two hours, with an incision made in the white of the eye and the chip manipulated into a pocket under the retina.

14.   The operation could last until midnight.

15.   The operation lasted four hours.

16.   The operation lasted six hours.

17.   The textbook-like operation lasted three minutes.

18.   The textbook-like operation lasted three minutes with no reported injuries.

19.   There was no indication how much longer the operation would last, though Israeli officials said it would be at least several more days.

20.   Pakistan President Pervez Musharraf said his country will cooperate with U.S.-led military efforts for as long as the operation lasts.