From the president on down, officials repeatedly warned Americans against short-term thinking.
Health authorities have long been warning Americans to slash the sodium in our diets.
"My case is a microcosm," the congressman warns Americans who feel threatened by big government.
"I was warned about you Americans," he added, his tone no longer amused.
The president warned Americans against singling out people by race or religion.
They tried to warn other Americans what the charges concealed - or revealed.
President Bush warned Americans yesterday to "be prepared for loss of life."
Ominously, vaguely, federal officials are again warning Americans to be on alert for some sort of terrorist attack.
It is clear this lawsuit seeks to warn Americans against voicing similar concerns.
A generation ago, a President, speaking of the cold war, warned Americans they were in for a long twilight struggle.