I've learned from a Russian doctor that circumcision was banned in USSR. There was no law, but rabbis were arrested for practicing religious Jewish circumcision without obeying sanitary standards and endangering babies health. In simple words, rabbis were arrested for sucking babies dicks.
I can't find articles about this in English. Only in Russian.
why would a Russian doctor know such "intimate" knowledge that only ascertains to the jewish faith? (muslims too i guess) was he one of them?
If you can translate my links from Yandex, they explain all this.