Passage Summary: The author argues that red-light cameras are a failure for safety because, even though they stop some crashes, they cause so many more rear-end accidents that the total crash count goes up.

Conclusion: Traffic cameras at intersections do not actually improve traffic safety.

Reasoning: While side-impact collisions decrease at intersections with cameras, the total number of accidents increases because rear-impact collisions rise significantly.

Analysis: The author's logic rests on a 'numbers game,' assuming that more accidents automatically equals less safety. To weaken this, we should challenge the assumption that all accidents are equal. If the side-impact collisions that were prevented were life-threatening, while the new rear-end collisions are merely minor 'fender benders,' then the cameras actually *did* increase safety. Look for an answer that highlights the difference in severity between the types of accidents mentioned.