"No. an unreliable source that agrees with other sources does not become reliable. never. never ever. sorry."  Perhaps I was not explaining my point in enough detail.  The source is only there to confirm what the other four sources (provided at your demand) also corraborate.  Therefore, the information being used for that source is reliable even though it does not necessarily meet your litmus test for what a reliable source is.  That's my point as it was in the previous reference I gave for the Glock 18 interchangeability.  That point is one you conceded and I'm using the same logic to refute your argument in this case as well.