11.   Helicopters passed overhead, and two powerful explosions were seen, apparently from missiles.

12.   I saw the explosion.

13.   John Coyne saw the explosion through the sliding glass door of the condominium he rented for the week in Westhampton, N.Y.

14.   Last year saw an explosion of lawlessness.

15.   Like many cities, Washington has seen an explosion of retail and commercial activity in the suburbs of Maryland and Northern Virginia.

16.   Major A.C. Roper, spokesman for the US military at the base, said two explosions were seen in the morning less than a mile outside the airport.

17.   On TV, he and others in the room saw the explosion in the second tower.

18.   Other explosions were seen and heard in the Afghan capital, Kabul, where electricity supplies were cut.

19.   Roussel counters by pointing out that Conyers is served by the same freeway and has seen an explosion of new hotels and restaurants.

20.   Saw an explosion of private pension plans.