Reactive barrier protection offers real-time benefits, as discovered by Tom Daschle. A former US Senate Majority Leader, he was also the target of an attack during the fall of 2001.

His office received an envelope of Anthrax. This was true, too, for other politicians and journalists. The envelope involving Daschle, arrived at his personal office exposing some of his staffers to it as well.

His office was quickly quarantined.