""The UN has shifted concerns about chemical weapons in Syria
from the regime to the rebels. They argue that pro-opposition countries could
supply them to anti-Assad fighters and then blame the Syrian government. The
United Nations is "genuinely worried" that some countries could supply chemical
weapons to extremist groups in Syria and then claim that they were unleashed by
the Syrian government, the country's UN envoy argued in correspondence made
public on Monday."" (thanks Amir)