I think it's been demonstrated that regular periodic screening tends to work better, because in this way, if you're going in for your regular medical checkup and you get screened at that time, and it's not necessarily deployment-specific.... Somebody coming back from deployment, for example, may minimize their symptoms or may not have acknowledged their symptoms at that time, but maybe if the screenings are repeated regularly as part of their general health assessment, then....
On November 25th, 2010. See this statement in context.