Abstract
The lack of transparency and verification of the Biological Weapons Convention (BWC) is one factor behind the current weakening of the ban on biological weapons. Despite recent setbacks, governments need to fill the verification gap so that violations of the BWC can be detected and deterred. Continued talks on a strong verification mechanism for the BWC should aim for an open verification regime and one that is flexible enough to adapt to new technical and political circumstances. Effective monitoring of compliance with the BWC will require concerted effort by governments and civil society.