I still need to do more research on this.
but this is what I found so far.

Bill gates paying for it.
http://green.blogs.nytimes.com/2012/07/17/trial-balloon-a-tiny-geoengineering-experiment/

Helicopters
http://www.nbcbayarea.com/news/local/Low-Flying-Helicopters-Testing-for-Radiation-167573535.html

Milk
http://enenews.com/cesium-in-san-fr...exceeding-epas-maximum-contaminant-level

http://enenews.com/highest-level-ra...150-epas-maximum-contaminant-limit-chart

got tons more on this too. but figure you guys probally know more than me. Since i am new here wanted to share

I don't know anything except that Bill gates is probally paying for it.