July 2, 2012 2:12 PM

How about laser's red glare for the 4th?

The venerable tradition of Independence Day fireworks shows is under attack. From one flank, red ink from municipal budgets has fireworks fuses fizzling. On another side, environmentalists are raising questions: What about the smoke? The noise? The debris? Fireworks face at least one other, "Star Wars"-like threat: lasers.

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