The Transportation Security Administration did little to explain the rules. And that inconsistency might well have been deliberate: What's confusing to passengers is also confusing to potential terrorists.I don't quite buy it.
"It keeps them guessing," transportation expert Joseph Schwieterman said.
It seems to me that WBAMMDs (formerly known as terrorists) would simply look at what is and what isn't screened and act accordingly. So long as discretion fails to include the most obvious tip-offs of likely terrorist activity (Arabic background and Islamic religious affiliation), discretion will primarily amount to planned carelessness.
Checking shoes on occasion tells WBAMMBs that shoe bombs have a chance of making it through security. Likewise other potential security checks.
This discretion thing sounds like a lawsuit waiting to happen.