What You Asked For But ....
The controversy over the drug-resistant TB patient Mr. Andrew Speaker who flew back to the US from Europe over his doctors’ objections, and his ability to enter the US even though he was on a travelers’ watch list, illustrates the very old IS&T designer admonition to users that, “It may be the system design you specified, but it isn’t what you wanted or needed.”
As you may recall, Mr. Speaker flew to Montreal from Prague and then drove into the US at the Champlain, New York border as a deliberate means to by-pass the likelihood that would be kept from flying directly back to the US from Europe because he would be on the US “no fly list.” Although the US Customs and Border Protection inspector saw that there was an alert on Mr. Speaker stating that if he should try to re-enter the US, Speaker should be detained and isolated, and public health officials immediately contacted. Instead, the inspector ignored the warning and waved Speaker through because, according to reports, “he didn’t look sick.”
As additionally described in a Washington Post story, US Custom and Border Protection “ … officials testified that they caught the inspector's error only by a mix of caution and luck, because starting May 22 they had ordered a special, twice-a-day check of a database of airline reservations to see if Speaker had changed his expected June 5 return to the United States.
As it turns out, the database is linked to records that also show when a passport flagged by authorities has been swiped at a border crossing, as Speaker's did when he reentered at 6:18 p.m. on May 24.”
The Post story goes on to quote US Customs and Border Protection Commissioner W. Ralph Basham, as saying, “I'm not going to sit here and say the system worked. It may have worked the way it was designed, but it was not good enough.” No kidding.
To reduce the possibility of something like this happening again, US Custom and Border Protection officials are now saying they are putting new procedures in place. Of course, this won’t keep highly infectious and multi drug-resistant TB out of the US, which Nils Daulaire, president of the Global Health Council argues, requires a more active risk management approach to attack TB at its source.
To me, the risk of a single point of failure like a Border official ignoring a warning is symptomatic of what happens in many information system designs. Few IT systems are ever examined in depth after they are deployed for their operational limitations until after an incident like the one occurs. And in my experience, most limits turn out to be, as described by Harvard Business School professor Max H. Bazerman and INSEAD professor Michael D. Watkins, “predictable surprises.”
I'll be interested in seeing whether this event will trigger a wider review of the limitations of the Custom and Border system as well as its systemic role in being able to manage the risks of travelers having infectious diseases, but my expectations are not high for this happening any time soon.

