Security

From wigs to dead drops, the espionage tussles between the United States and Russia are increasingly playing by the old Cold War rules -- including the public shaming of the unlucky spooks who get caught.

The recent Kerry-Lavrov initiative to end the conflict in Syria through talks was met with skepticism among those who believe that the United States and Russia will bring their own agendas to the table, that Bashar al-Assad will refuse to step down, and that the Syrian opposition is too fragmented to strike a deal. But those are common problems, and successful talks can be -- and have been -- started under just such conditions.

Given that there are few appealing policy options for Syria, it might be tempting to downplay Assad's alleged use of chemical weapons and brush aside earlier rhetoric about red lines. But that would be a mistake: chemical weapons can kill thousands in a single day, their use becomes a national trauma, and their debilitating effects linger for decades.

Although chemical weapons are often considered weapons of mass destruction, they are not. In the case of sarin gas, many tons must be released under favorable conditions before it can inflict significantly more damage than conventional explosives. However repugnant Assad's use of chemical weapons in Syria might be, in other words, it should not change the United States' basic calculations.