"The Constitution is not a suicide pact." After 9/11, that saw — originally coined by Supreme Court Justice Robert Jackson — was dusted off. Lately, it's been getting a heavy workout.

On June 12, for instance, the U.S. Supreme Court released a decision authored by Justice Anthony Kennedy holding, in Boumediene vs. Bush, that Guantanamo prisoners have the right to ask the federal courts to rule on the validity of their continued detention.

Barack Obama praised Kennedy's majority opinion for "re-establishing our credibility as a nation committed to the rule of law," but John McCain denounced it as "one of the worst decisions in the history of this country." The Wall Street Journal's editorialists agreed with McCain and hauled out the usual cliches: "More Americans are likely to die as a result (of this decision)," they opined darkly. "Justice Jackson once famously observed that the Constitution is 'not a suicide pact.' About Anthony Kennedy's Constitution, we're not so sure."

When invoked with the requisite tone of pompous finality, "the Constitution is not a suicide pact" is an effective rhetorical ploy. Who could disagree?

But the Constitution also doesn't contain any footnotes that say, "Note to our descendants: This Constitution is intended for easy times only. At the first sign of trouble, feed this document to your dog. We won't mind. We only fought a war for it."

This Fourth of July, celebrate by rereading the Declaration of Independence, created by more or less the same crowd who brought us the Constitution, 11 years and one war later. Remember it? "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty and the pursuit of happiness."

Wild stuff! To the founders, "all men" have "unalienable rights" — not just U.S. citizens in the continental United States. (If the Founding Fathers were around today, Rush Limbaugh and Rudy Giuliani would pillory them as limp-wristed, latte-drinking, soft-on-terror liberals.)

It was treasonous stuff too. When the Declaration of Independence was drafted, there were no U.S. citizens. Instead, there were about 2.5 million scrappy Colonists who legally owed allegiance to the king of England, George III. But they went to war — over the little matter of freedom, law and unalienable, God-given rights.

Among their grievances against King George, the rebellious Colonists complained that he ignored the will of their representative bodies, refused "his assent to laws for establishing judiciary powers" and "affected to render the military independent of and superior to the civil power." The Colonists also objected to the denial of "the benefit of trial by jury" and the king's practice of avoiding the inconveniences of due process by transporting prisoners "beyond seas to be tried for pretended offenses." (George III would have loved Guantanamo.)

The founders had a word for governments that respected rights only arbitrarily and selectively: tyranny. The signers of the declaration took rights seriously. They wrote, "For the support of this declaration, we mutually pledge to each other our lives, our fortunes, and our sacred honor." That wasn't mere rhetoric. Technically, the signers were all traitors, liable to be executed for treason. And they accepted that standing up for rights means taking some real risks.

Of the 56 signers of the declaration, about a third fought in the Revolutionary War, and five were captured and severely mistreated by the British. Several later died. Many lost children in the war, and about a third had their homes damaged or destroyed by the British. About 25,000 Colonists died in the war, about 8,000 in combat, the rest of disease — including an estimated 8,000 to 12,000 who died as a result of mistreatment while prisoners of the British. Extrapolating to modern population figures, that's like losing nearly 300,000 Americans in a war.

The Constitution is no "suicide pact," but the people who founded this nation risked war, prison and death for the sake of unalienable human rights. Their values guided us through good times and bad, through the Civil War, two world wars and the Cold War. But today, some Americans seem happy to discard those same precious values in the name of "security."

Sometimes I wonder: If the founders could have foreseen this, would they have bothered to fight the Revolutionary War?

Rosa Brooks is a professor at the Georgetown University Law Center. E-mail her at rbrooks@latimescolumnists.com. She wrote this commentary for the Los Angeles Times.