For this off-site analysis, the Organisation for the Prohibition of Chemical Weapons (OPCW) - the implementing agency of the Chemical Weapons Convention - has established an international network of highly competent so-called "designated laboratories" that routinely undergo proficiency testing to ensure that their standard of analysis is up to the needs.

BBC: How to investigate chemical weapons allegations

Bush has called for a testing regimen to help get lagging or failed schools on track, saying student proficiency in reading and math must be measured so parents will know whether their children are advancing equitably -- and so school administrators will know if their teachers are performing up to locally established standards.

CNN: Bush impatient with Congress on education bill