Inside Insider Dealing

It's curtain up as we put insider trading in the spotlight: Just how easy is it to cross the line between legal and illegal trading in financial markets? We find out with the help of a few BBC actors and Brian Tora of stockbrokers JM Finn, a veteran of the stockmarkets.
Plus, why so-called 'expert networks' - the matchmakers of the information age - have become the new baddies of Wall Street. We speak to consultant Mark O'Connor of Monadnock Research in the US, the man who coined the term.