Drunk driving laws need to be tougher / Milwaukee Journal Sentinel -- MADD gets madder / Eric Peters -- Drunk driving laws should focus on impairment, not alcohol use / Radley Balko -- Anonymous tips should be used to prevent drunk driving / John Roberts -- Undocumented immigrants are a large portion of drunk drivers / R. Cort Kirkwood -- Laws targeting undocumented drunk drivers are misguided / Chris Burbank -- Sobriety checkpoints are effective in preventing drunk driving / Texas Transportation Institute -- Sobriety checkpoints are ineffective in preventing drunk driving / Patrick Adams -- Ignition Interlock devices should be required of all convicted drunk drivers / Rebecca Kanable -- Ignition interlock devices are unreliable / David C. Pilato -- Lowering the drinking age will not reduce teen alcohol use and abuse / Adrian Lund -- Raising the drinking age has not been effective / Jeffrey A. Miron and Elina Tetelbaum -- Appendix: What you should know about drunk driving -- What you should do about drunk driving.