One of the most credible and reliable voices I know of is that of whistleblower, William Binney.
Here he is interviewed by Alex Jones of InfoWars
William Binney: US Government Is Required To Declassify Documents That Contain Criminality
Here is the full interview. I can understand why Binney goes on Alex Jones – with 2.2 million subscribers on InfoWars (as opposed to 2.4 million for CNN) it is perhaps the only way to get his message across to the general American public.
Although I find Jones pretty unpalatable it is worthwhile holding one's breath to listen to an interview like this.