Las Vegas police have revealed that Tom Alexandrovich, head of a division in the Israeli Cyber Authority, is the senior official who was detained for questioning this week during a professional conference he attended in the United States on behalf of the state - and that he is being investigated on suspicion of online pedophilia. Seven other people were arrested along with him as part of a large-scale operation against online pedophiles, led by Las Vegas police who also published the public announcement about the arrest.