You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

Amb. Jeffrey: The U.S. rejects the farcical Russian defense ministry &amp; media statements alleging that yesterday’s peaceful demonstrations in #Idlib against Russian military patrols were organized by "terrorists trying to use civilians as a human shield." https://t.co/cmL3Ened04