CBW history link
I'm going to try to kill a few issues in the entry with a single stone. If I miss my target, I'd like the opportunity to take a second shot. I am going to neutralize the POV and introduce the CBW aspect. 

The POV concern is because both the Canadian and US Air force counter-claims state current activities /capabilities. Neither refutes or try to explain the theorists belief that there were Cold War activities as theorized and that chem-trails are an extension of it.  Canada had the Suffolk Experimental Station and were the specialists in the field of Large Area Coverage. The CBW aspect is mentioned in the Lead but not the body-a policy issue.  Another policy issue is that a reference is listed but not used in the entry.  When the CBW info is introduced, you might see a obvious correlation in Declassification/public disclosure and theorists claims and Official responses in the late 1970s, mid-90s, early 2003.  This is not OR.  I'm going use properly-used sources to state the public domain facts without any analysis.