For the record the two thinner ones appear to be contrails, they are up in the RVSM (Reduced Vertical Separation Mean) altitude. I think they call it something else now but that's what it was called when we were certifying older mil aircraft to fly in that space. It's higher, colder, less wind to disturb the trail, just lingers.
That being said, Chem-trails are real, it's a patented technology, I've witnessed it personally.
If you are ever near Dover, AFB you'll see white 747's, no markings or tail numbers and of course Evergreen's 747 are there too.
I can't say they are doing anything nefarious but the problem is, the people fixing the plans and filling them with chemicals honestly can't tell you what they are doing either.
They call them spooks for a reason…