18. Which of the following may be installed in cars to prevent an impaired drtver from driving? A. lgnition interlock device
B. Field sobriety device
C. Prevention impaired device
D. Driving lockdown device

Congress passed a law imposing penalties for displaying indecent material online where children could see it. if the u.s. supreme court subsequently rules that the statute conflicts with the first amendment of the u.s. constitution, the statute is void. true or false?