Beaver..
If you listened to the audio clip the people talking are telling you the SEC(Securities Exchange Commission) In the US is allready investigating the trading market and the naked shorting practice..
That is why the share certificate is so important..it has a serial number on it for each share accountability,and each time that particular share is bought or sold ..there is a record of it through the Transfer Agent..
That record is what the naked shorters are scared of..That will tell the regulators a history and movement of the share and to who it is bought or sold too..
If you use a trading agent or brokerage or hold shares in an RRSP..IRA..401K account ,you would never see the share certificate,as they are held in trust and in a tax consequence if moved(Bought or sold)..
Hope this helps..Gotta run..
Listen to that clip/...
Later.