Originally Posted by
jkhuggins
And now, you open the screeners up to charges of bias. A screener just changes the value of "N", and the next person selected just happens to have an ethnicity different from the screener. Did the screener change the value of "N" truly arbitrarily, or did the screener choose "N" because of racial bias? There's no way to know, either way --- either to prove bias, or to absolve an honest screener from charges of bias.
That's why investing 30 minutes in drawing up a written policy is sufficient. CBP can change the N value on the hour, or according to some other policy. It's not rocket science...just think it out and write it down.