very real. that s a dangerous job. cnn newsroom with don lemon comi coming up in a few minutes. how do you top that? you have a lot coming up. we have a lot of very serious news coming up. tomorrow marks four weeks since the boston marathon bombings. boston doesn t have surveillance cameras mounted around the city to monitor people, so police use store mounted cameras and cell phone video to help i.d. the suspects. are we living in a time where streets should be monitored 24/7 for safety, or does it compromise our values. we ll talk about that. also, 25 years later, still the worst drunken driving crash in school history. a school bus hit by a truck with a drunk driver behind the wheel. 27 people killed that day. that helped propel mothers against driunk driving. we ll hear from a mother of one