Originally Posted by
aamilesslave
Well, more than likely either you're not being randomlly selected or the TSA doesn't like what they know about you.
I was thinking the same thing, but since the OP said he has a CBP number, it would be silly for the TSA to not trust someone that CBP trusts.
OP: Maybe the number is entered incorrect? Double-check that the CBP number has not been transposed. And that the Secure Flight info matches exactly what GOES says.