OK first report is from a btc miner in America whose channel I follow. He reports what he knows about this arrest (which is what RT reported on as well (below).
Apparently the guy is a developer for Ethereum (second largest crypto after Bitcoin, ie largest "altcoin"). Assuming this sends shocks through the crypto world, it may be one of the catalysts for a bear market. If a bear market does come, I'm already out of crypto into USD Stable coins.
US cryptocurrency expert arrested for ‘aiding adversary & sanctions violation’ over North Korea trip