Rehearsal of Terror?

Astonishing first-person account in the Womens Wall Street.com of a journalist's brush with what could have been a dry-run of a plane bombing. On a flight with her family, the writer, Annie Jacobsen, notices a group of Arab men repeatedly visiting the lavatories, often with items. On enquiry, Jacobsen discovers that the men were being monitored by Air Marshals and were taken in for questioning when the plane landed, however the marshals "aren't going to deploy until there is an actual event". Given that reports of plans by terrorists to assemble bombs after take-off, usually in the toilets, have been circulating, one wonders what the "event" would have to be before the Marshals "deploy". Read the article yourself and decide whether this was a case of paranoia on the part of the journalist or inaction on the part of the agents.