F-35 in Japan

The F-35 is the worlds costliest jet; and many in the world were wondering who was pilfering the money from the cost overruns. 

At last, it seems it is operational. Now:

http://news.xinhuanet.com/english/2017-01/18/c_135994352.htm

and you wonder how much it makes the US feel safer.

If it does not achieve this outcome, then what on earth are the stationed in Japan to the cost of the US taxpayer?

As a US taxpayer who is reading this blog:

DO YOU FEEL SAFER?