A couple of things, childhood memories are often flawed (i.e. I don't remember there being so many commercials on tv when I was a kid"), you may not have been looking for them back then and are hypersensitive to it now, jet traffic has increased since you were a child, vapor trails are dependent on atmospheric conditions (temperature, pressure, humidity) at the time, and in Santa Cruz, were next to 3 international airports (SF, Oakland, San Jose), quite a nexus of jet traffic.

If this were some kind of planned program, lets see if I can break down the problems inherent.

#1. It's a military program run by the military - The number of flights involved would disrupt commercial flights, showing up in FAA record so not only would hundreds of military personell need to be involved but hundreds of Air Traffic Control personel as well.

#2. It's a military program run through civilian aircraft - The chemical agents would either have to be dispursed by either mixing it with the aircrafts fuel at the airport, needing hundreds of maintainance personel involded or mixed with the fuel at the refinery, needing hundreds more involved, or the chemical is dispursed through a secondary device attached to the civilian aircract, needing hundreds of maintainance and inspection personel involved.

For a program to work, there would need to be hundreds if not thousands of people involved. There's no way you could put that many military people into a civilian market and not have SOMEBODY notice (like a union!!!) or have at least one disgruntled employee spilling the beans. Just too massive to be a workable conspiracy.

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rodent (putting the eek in geek)

I remember clouds forming from vapor trails as a kid. There are documented cases of US and other military experimenting with weather manipulation.

I am far from convinced that it happens on an ongoing basis all over without someone somewhere saying something. Think about it: This would involve pilots spraying their own families.

I am not absolutely convinved against, but I am skeptical and leaning that way.

Some interesting info:

www.chycho.com/

I don't know exactly what to think either, but like I said, if the military *could* create atmospheric radar shields, I'm inclined to believe that they would. And if they did this WITH the public's knowledge, can you imagine the red tape they would have to go through each time this happened over a populated area? It would be a legal nightmare and possibly impede "national security".

I also think that the people involved wouldn't even know what they were doing, as each person would just be performing an isolated task with no connection or context to the larger project. When it comes to operations like this, that's how it works.