The diplomatic focus now seems to be switching to the UN Security Council, with speculation that it may vote on a draft resolution on Syria in the coming days - although Russia still opposes the move.
Then, last week, in an apparent bid to dampen speculation that their security measures were over the top, government officials reportedly suggested that Mr bin Laden himself could be behind the new-found threat.
"For some months now, the employees of the company have had to live with almost daily speculation about the security of their jobs and the long-term plans for the company, " Unite official Rob MacGregor.