Monday, May 2, 2011

DNA match

After I saw today that "DNA matching confirmed that Osama Bin Laden was killed" my immediate response was: what are they using as reference?

Let me elaborate. To match someone's DNA you need to have a reference sample in file and then match a new sample to the old one. You can't ID someone based solely on one sample, you need a comparison.

So, someone in the US government needed to have a DNA sample from Osama from years ago. Here is the kicker, nowadays you can obtain DNA from almost any biological sample but, that was not the case 10+ years ago, the technology was not as developed as it is now. They needed to take a pretty big sample, blood in a test tube for example. But, why would the government have a sample like that from Osama given that before 9/11 no one cared that he was a crazy bastard. If the sample was acquired after 9/11 it would make no sense given that "no one knew where he was".

Granted they could use his son's DNA to compare (his son's DNA would be 50% similar to Osama's DNA) but with that they could only guarantee that the dead person was the father of the son, not that it was Osama bin Laden. I don't want to be a party pooper but I would not believe in a DNA test unless they told me how they got their reference. Just saying.

2 comments:

  1. Apparently his sister had DNA taken a few years ago. Also OBL was treated in a US hospital years ago - not sure how long ago that was and what samples may have been take at the time

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  2. It was reported on various news stations that the U.S. already had his DNA. How they got it, I don't recall. Of course, I take very little the idiot box tells me as truth, anyway...

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