I sent the first three that I saw. I have to admit that in my eyes all those sit...

I sent the first three that I saw. I have to admit that in my eyes all those sites have the same lack of credibility. Here's a few more mainstream, I think.

"Analysts suggested that one of its possible missions could be disrupting communication cables on the seabed." https://time.com/5619197/russia-navy-submarine-fire-deaths/

"Western military experts have suggested it is capable of probing and possibly even severing undersea communications cables." https://www.cbc.ca/news/world/putin-russia-submarine-fire-nu...

"Analysts suggested that one of its possible missions could be disrupting communication cables on the ocean bed." https://www.cnbc.com/2019/07/02/sailors-killed-in-russia-sub...

"Russian ships may be using underwater cables to spy" https://nypost.com/2018/03/30/russian-ships-may-be-using-und...

etc.