Book excerpt: When Gregory Lee Johnson burned an American flag as part of a political protest, he was convicted for flag desecration under Texas law. But the Supreme Court, by a contentious 5 to margin, overturned that conviction, claiming that Johnson's action constituted symbolic -- and thus protected -- speech. Heated debate continues to swirl around that controversial decision, both hailed as a victory for free speech advocates and reviled as an abomination that erodes the patriotic foundations of American democracy. Such passionate yet contradictory views are at the heart of this landmark case. Book jacket.