Do they show and describe everything bit of equipment the US develops/is developing? Do they show these secret projects you admit exist?
Looks "quite similar" is quite subjective. You're telling me that you know for a fact that the tail rotor would not work just by looking at it? I doubt this. But, assuming that is accurate, why would they design a fake non-functional tail rotor which people can determine as non-functional just by looking at pictures of it instead of just getting an actual tail rotor? The tail rotor does share quite a lot of similarities with the main rotor of the Comanche project, btw, which leads credence to the notion that it does belong to a stealth helicopter.
How strange is it that the helicopter could have crashed near the wall with the boom of the tail rotor being propped up by the wall? What about this is strange?
Notice how they've been working on making a stealth UH-60 since 1978...
They have already made many "stealth" improvements in the UH-60 over the years. There is only so much they can do without sacrificing aerodynamic performance.
Are you rated in helicopters or airplanes?
Current issue of AW&ST has a picture and article of an F-18 with radar absorbent material (RAM) in an effort to improve stealth. Pretty super secret, eh? Posted in a magazine. Geez, if only OBL were with us, he would be reading that and advising his camel drivers to look out, eh?