Reply #38: You can't unring the bell [View All]

[depakid]

It's the risk of spreading a deadly contagion that we all need to be concerned with. If it were not this pathogen, it could just as easily be some other emerging disease- one that might be far more contagious..

Presumably, this guy was reasonably well educated- and had been warned. Had he been responsible, he could easily have sat down and found this (took me all of 3 minutes):

Tuberculosis and Air Travel: guidelines for prevention and control, SECOND EDITION

http://whqlibdoc.who.int/hq/2006/WHO_HTM_TB_2006.363_eng.pdf

He chose not to- nor apparently, did his wife. That no one has fallen ill at this point is irrelevant.