Subject: Two follow-up questions on wireless electric power and Tesla

There are mainly two perplexing questions that I have run into in my study of 
Tesla and electricity:
(1)  Wasn't the Colorado experiment AFTER the Niagra Falls power
station project and AFTER Tesla's major inventions with AC motors and current?  
Wasn't Tesla buidling the huge (for the time) and unfinished experimental tower 
in NYC (Cony Island?) AFTER the Niagra work?  So - and this matches with what 
Tesla himself wrote in his autobiography, which I have read - apparently
Tesla STILL BELIEVED that wireless power was both possible and that he had
already done it, on a small scale in Colorado!  Does anyone living today really 
know (a) what Tesla accomplished in Colorado, and (b) what the SECOND TOWER, 
never finished in New York, WOULD HAVE been capable of accomplishing?

(2)  Regarding the apparently well-known potential for human electrocution even 
by INSULATED high voltage, I'm referring to INSULATED wires.  These are covered 
by a so-called NON-CONDUCTOR, so how is the electric shock to a human 
possible?  Doesn't this mean the electrons are flowing THROUGH THE INSULATOR, A 
NON-CONDUCTOR and also through the AIR?  Or is the shock the result of the 
magnetic field OUTSIDE THE INSULATOR?

Similarly, if air is classed as a NON-CONDUCTOR or INSULATOR, then how
does lightning flow through it?  Doesn't that, by definition, prove that
Tesla was right!  Isn't lightning itself a wireless transmission of
electrical power?

Re: Two follow-up questions on wireless electric power and Tesla