You guys know nothing about journalistic sources and freedom of the press.
as already said, stopping crime is not e.tv's business, it is the responsibility of the police and the govt.
If e.tv gives up these names, then they will have lost all credibility with the public and the next time an opportunity presents itself to interview a potential criminal, the criminal won't talk to e.tv because he can't trust them. so he goes unreported and free to do his crime and nobody gets to hear about it.
Please do a little bit of reading on freedom of the press.
http://en.wikipedia.org/wiki/Freedom_of_the_press