In US, official does cover up too.

来源: 于 2019-07-23 10:34:18 [旧帖] [给我悄悄话] 本文已被阅读：次

In US, there has been a history of systematic cover up also, for various motives too. Check the link:

https://www.huffpost.com/entry/us-olympic-team-cheating-russia_n_5a2aca81e4b073789f695a21