On Feb 15, 11:08*pm, "Rod Speed" wrote:
"dennis@home" wrote in message

eb.com...

On 15/02/2013 18:59, PeterC wrote:

8

Yes. Tesing for one 'contaminant' doesn't detect others. We need to know
that it's right, not that one aspect is wrong and others aren't detected.
Absence of evidence is not evidence of absence.

Its very hard to test for the absence of something unknown.

It isnt hard to test the claim that its 100% beef.

Yes it is.