Anonymous warns of Los Angeles, California attack coming

Anonymous message below...

Target:  Downtown Los Angeles Towers

Citibank and U.S. Bank buildings

Date:  Friday November 15, 2013

Is this a CREDIBLE THREAT?

This from "LogicBeforeAuthority" YOU TUBE CHANNEL.  Not sure if this is a mirrored video or what it is.  Can anyone confirm or deny the accuracy of any of this?

Now why would people put videos like this out?  Time will tell:

...developing...