21.   The primary focus should be on the efforts to change policies that, if left in place, will surely lead to similar tragedies.

22.   Wells says he built his new seat in hopes that he will never again have to endure a similar tragedy.

23.   Worcester fire officials, who described the report as comprehensive, pointed to several changes made since the blaze that would likely help the department avoid similar tragedies.

24.   Philippine Environmental Secretary Victor Ramos warned that a similar tragedy could occur in gold-mining areas in Davao province in the southern Philippines.

25.   AN official investigating the Mei Foo killer blaze warned a similar tragedy would occur unless members of the public were educated in fire prevention.

26.   Barth said the best way to prevent similar tragedies would be to improve surveillance by parole officers and police.

27.   Authorities need to better train tour guides to avoid similar tragedies in the future, the Venezuelan environmental group Friends of the Gran Sabana said.

28.   France has refused entry to trucks as response to public and environmental concerns that doing so would lead to a similar tragedy.

29.   The purpose of the grant is to take advantage of technology so that a tragedy similar to the one in Colombia does not happen again, Sheridan said.

30.   Those who have experience of similar tragedies sounded a warning.