iGaming Business – The operators of two Bitcoin exchanges have been arrested in the US following allegations surrounding their involvement in a scheme to sell the virtual currency to users of online drug marketplace Silk Road. According to the BBC, the US Department of Justice said that Charlie Shrem of BitInstant.com and Robert Faiella, known as BTCKing, have both been charged with money laundering. The US authorities claim that the pair were engaged in a scheme to sell more than $1 million (€732,022) to users of Silk Road, a website that was shut down last year after its owner was…