1.   He labored for years in grain elevators before finding work underground as a means of supporting his family.

2.   What had been the north tower lobby, identified though large chunks of gray floor marble, was found underground at what would have been the fifth basement level.

3.   The situation came to light in September when red harvester ants found underground near some old waste pipes were discovered to be radioactive.

4.   The Tokyo metropolitan police tightened inspection on automobiles, while officers were seen turning over manhole covers and searching any suspicious objects found underground.