There is an old news. The first time I heard this, it was by Rand think tank about its report of hypersonic weapons. In 2016 they seem to think that in less than ten years, Iran or North Korea will get hypersonic weapons. If this tunnel was designed around 2000's ready around early 2010, and announced at 2014, it means Iran does have now a more sophisticated tunnel, maybe around mach 10 ? Mach 12 ? Americans are nearly sure that Iran and NK will have hypersonic weapons next:
Lt. Gen. Samuel Greaves, the director of the Missile Defense Agency, testified to the Senate Appropriations Defense Subcommittee. ...about the risk that China and Russia’s
hypersonic missile technology will be proliferated to countries like North Korea and
Iran.
https://nationalinterest.org/blog/b...d-iran-could-acquire-hypersonic-weapons-40057