Becouse information on how to defeat stealth technology is just handed out to civilians.
Field deployed=its been deployed in the field, how is that difficult to understand?
This is a little bit different to disasters which the Russian beuracracy has yet to fully understand how to handle in the world of the open media.
There is a picture posted above of S-400 equipment, try reading posts before replying.
Your utter ignorance of Russian affairs is baffling as is your ridiclous belief that the russians are somehow all evil liars who are not capable of deploying a modern weapon system.

We have seen this missile before in a chinese workshop, a link to the picture is posted on the first or second page of this thread.

Awesome!!! I realy hope India goes for this plane it looks fantastic, especially if fitted with Bars 29. Note that this aircraft lacks the wingtip launch rails shown on the mockup displayed a few years ago.

I am English and I have to agree with Pilotght, our aviation industry today is a joke in comparison to france. From the 1960s onwards it has been in a progressive and sad decline.
It is also possible that the Rafale is a better aircraft than the typhoon, certainly there is very little to pick between them (other than the fact that the Rafale is better looking).

I have also followed the S-400 programme, but unlike you I understand the complexities of the desighning, developing and constructing advanced weapons technology aswell as the difficulties encountered in Russia as a result of the post 1992-1998 period.
Far from being an apologist of Russian arms I am a realist (My nationality is not Russian) I recognise the strengths and weaknesses of Russian weapons technology.
SAM systems, along with aircraft and anti-tank missiles are the strong points whilst tanks and surface warships are currently relative weak points.
What you fail to understand about the S-400 is that it is an evolutionary system, not an instantaneous one, it is now meant to evolve out of the existing S-300 systems.
I also notice that you only mention Russian, chinese and Indian posters, and not American or European posters?