Numerous US Launch Failures

An ever-increasing number of launch failures (both secret and unveiled) taking place in the US on a constant basis, clearly proves their space hardware is not reliable enough and the functional quality of their space technologies is rather inadequate. This video gives quite a vivid review of it. Moreover, the much talked-about accidents like shuttle Columbia crash and other less known catastrophes forced the US to refer to the Russian technical aid and our state-of-the-art space technologies.

In particular,

-the American Atlas 5, for example, is being equipped with the Russian-developed rocket engine RD-180 (РД-180) so far, which is considered to be the best rocket engine of 2008 in its characteristics and performance;

the scaled back error-prone Shuttle program is substituted by the approved Russian carrier rockets Союз (Soyuz) which were recognized by the Americans to be the only flawless carrier rockets able to deliver their astronauts to the Earth-Orbit and which are being provided to them at a charge by the Russian Federation.