I noticed. The three to four days leading up to the 4th were surprisingly clear. Then, on the 4th there was massive spraying as you indicated. There is no longer any doubt whatsoever in my mind that they are spraying people intentionally, not just doing weather modification or any other aim. I'm sure they knew folks would be out in droves, having picnics and assembling out of doors to watch fireworks displays. There was constant spray activities in the skies. I'm sure everyone who partakes in the spraying was out in force.