. >> officer ben biddle is with detroit's child abuse unit.hey quickly release the tape to the local media. >> be on the lookout for this man, caught on tape beating and kicking a very small baby boy. police want you to see the video to help find a child in danger. >> as biddle expects, the police are flooded with calls. >> once we aired it and once we showed what the child was going through, the citizens wanted to get this guy off the street. >> the response is overwhelming. after the story airs on the 11:00 news, the suspect is arrested early the next morning. >> his name is joseph gray, and the little boy is his girlfriend's son. they'd been dating just a couple months. she was sitting outside in the car while the beating took place inside. police say they showed her the video for the first time. >> she saw the video, and she broke down crying. she's real distraught by what happened. >> with his cruel behavior caught on camera, joseph gray pleads guilty to second-degree child abuse. >> it made it real hard for him to deny it. the tape close

. >> host: "a field guide to radiation" by wayne biddle. thank you for being on booktv. . .

postcode now one booktv, we want to introduce you to wayne biddle. we are here on location at johns hopkins university. what do you hear? >> guest: i teach in a writing seminar department. we're like an old-fashioned department only if on creative writing. i handled the nonfiction curriculum. >> host: what were you doing prior to this? s. going up from a traditional academic background. i was in washington and new york with "the new york times" and continue to do journalism, but i've been here. >> host: what kind of stories? >> guest: at the pentagon correspondent for the most part, but a lot of science and technology oriented. i was once educated to be an electrical engineer a long time ago, so i was able to approach a pentagon story about the latest zillion dollars jet aircraft from the nuts and bolts did it work or not rather than the political aspects of why it was being built. >> host: anyway pulitzer winner? >> guest: yes, the times did a big project on the so-called stars wars program during the reagan administration. we won a pulitzer for thi

with this cold front and behind the cold front, high pressure biddle -- and sunday is tradeoff, mildh rain. the forecast tomorrow in philadelphia brighter light breeze. and allentown a good amount of sun sheen -- sunshine and seasonable. and the shore instead of snow and clouds sunshine with a high of 40. wednesday out of the west 7-14 miles per hour. a little bit of a breeze but not that windy. the exclusive accuweather seven-day forecast tomorrow mixture of sun and clouds. high of 39 degrees. friday, bump it up to 40 but usher in the winds up to 30 miles per hour. and then behind the front on saturday, the sunshine returns but temperatures take a bit of a hit. the high only 35 degrees. sunday, a lot milder. 46 degrees, but it clouds up with some rain. and futuretracker showing the heaviest rain likely along the coast where you could get a half inch to an inch of rain. about a half inch in philadelphia. and the poconos, likely a few showers sunday. and monday behind sunday's cold front it is windy and chilly but dry for mlk day of service. 39 degrees. the temperatures drop back to 3

. >> host: "a field guide to radiation" by wayne biddle. thank you for being on booktv. . .