LA and NYC responded to yesterday's threat in much different ways

San Pascual Avenue Elementary School in Highland Park and all LAUSD schools are closed following Tuesday's threat of violence on Dec. 15, 2015.

In the face of yesterdays school threat, whether it was a hoax or not, New York city and Los Angeles had drastically different responses. What does that mean?

The threat received by official of LA schools was virtually identical to one sent to school officials in New York. Both had been routed through a server in Frankfurt... apparently by the same person, but the response couldn't have been more different.

New York police commissioner Bill Bratton deemed the message a hoax, and schools there were kept open yesterday, while here in Los Angeles, the threat was considered credible and schools were shut down.

What, if anything, do these decisions say about the differences in law enforcement on both coasts?

Alex Cohen poses that question to Joe Domanick, author of the book Blue: The LAPD and the Battle to Redeem American Policing.

To hear the entire conversation click on the audio embedded at the top of this post.