21.   There are now canisters of fresh water in each of the white vans that take them to their work sites.

22.   There were hinged canisters, for tea and coffee, which were practical because the covers could never get lost.

23.   Other officials, speaking on condition of anonymity, said the canisters were probably harmless.

24.   And unlike tear gas, there are no canisters that can be tossed back at police.

25.   Canisters of oxygen were on hand if needed.

26.   Four grapefruit-size canisters were found Friday at the Rocky Mountain Arsenal, where six devices containing the deadly sarin nerve gas were found last fall.

27.   However, the government has acknowledged that some tear gas canisters were potentially incendiary.

28.   Hundreds of tear gas canisters were fired as protesters blocked city streets, set up roadblocks and threw rocks at police.

29.   Lt. Bill Schwartz said the canister was about the size of a soup can.

30.   Police estimate the canisters were in the shallow irrigation ditch just west of the Florida Turnpike for more than a week.