21.   Hayashi, a cardiac surgeon and Aum official, is said to have confessed to taking part in the subway attack.

22.   He also apologized for lying to the Japanese people five years ago when at televised news conferences he adamantly denied that Aum had any connection to the subway attack.

23.   His three years in prison were for a perjury conviction unrelated to the subway attack.

24.   If it had been pure, the death toll in the subway attack might have been in the thousands.

25.   In the Tokyo subway attack, the religious cult Aum Shinrikyo planted containers of liquid sarin on six subway cars during the morning rush hour.

26.   Investigations conducted by intelligence agencies after the subway attack uncovered the Australia site and the mysterious explosion, which had been noticed by neighbors.

27.   Is it the same kind of gas that was used in the Japanese subway attacks?

28.   Inoue is suspected of having led the Tokyo subway attack.

29.   Japanese political leaders, city mayors, and victims of the subway attack applauded the proposed legislation Tuesday as a necessary step to prevent terrorism.

30.   No group has claimed responsibility for the Tokyo subway attack, but chemical weapons specialists said it would be hard for the attackers to import sarin from other countries.