More than two decades ago, the Surgeon General of the United States began warning the American public that tobacco smoking poses a serious health hazard.
But they can begin warning the public of a possible outbreak.
Tanner began warning young children who trespassed on his property to "Keep 'ee out o' Jerusalem's wood lot," lest the pig devour them.
Mr. Chaconas said he had been served poorly by his financial staff, which began warning him about a growing shortage only last spring.
He also said the department started making significant changes only in March, when it mailed out reminders with paychecks and began warning offending officers.
Sandinista leaders began warning their supporters this week to prepare for major political changes in Nicaragua soon because of the regional peace plan adopted last month.
Mr. Olson began warning as early as last June of an industrywide decrease in book sales.
Locals began warning each other with the saying, "Watch yourself, or you'll end up in Kemna!"
Last month the immigration service began warning the Salvadoran refugees with temporary residency status, ordering them "to show cause for why you should not be deported."
Now American government officials say they saw the risks in Mexico and began warning Mexican officials as early as late summer.