On a broader scale, the NSA had William Binney implement a way of vacumming up data, but the system include Constitutional protections and required a warrant to access.

Once it was implemented, the NSA took him off the project and put other people on to remove the controls.

Perhaps open source licenses should prohibit their use for adware, spyware and surveillance.

Apart from a plethora of open source projects to build its websites Google is using Android to hoover user data and open source should not be used to support a surveillance state.

This is a can of worms and probably not enforceable but it's worth it just for taking a stand.

It only takes one or two bad apples to spoil the whole barrel.