Power generators, dams, even water filtration plants are off limits to school visits that were once deemed harmless.

My passion for mystery, and a species of imposture, which I deemed harmless, was thus awakened afresh.

Far better, supporters say, to send them to secure institutions for treatment after prison and release them only when they are deemed harmless.

On land - away from sensitive marine organisms - the silt is deemed harmless by the E.P.A.

Firefighters said the package was deemed harmless.

From this study, the most common spider submitted from California as a brown recluse was in the genus Titiotus, whose bite is deemed harmless.

Individuals in the lowest category were deemed largely harmless and could be released, he said, as have been some 84 Guantánamo prisoners to date.

Lacking spine on the tail, it is deemed harmless to humans.

"Their use cannot be deemed harmless."