The officers don't know the passengers have cash, so that is not cause for suspicion. The search method described doesn't seem that voluntary. The article nev

The officers don't know the passengers have cash, so that is not cause for suspicion. The search method described doesn't seem that voluntary. The article never mentioned how much cash - what do you consider "considerable"? ATL->LAX may be only the first leg of a trip somewhere where you think it is reasonable to bring a considerable amount of cash. The people searched are disproportionately black. Black people are disproportionately poor, disproportionately under-served by the banking system, so more likely to carry and use cash.