prohibited transactions- avoiding liabiiity

[Guest dsamuels]

What steps are plan administrators taking to make sure they do not engage in prohibited transactions? What are the requirements for holding a fiduciary liable?( ex. Knows or should know?). What is the civil/criminal liability for a fiduciary engaging in a prohibited transaction? With the 2001 Advisory Opinion, what are plan administrators doing to make certain they are in compliance? What corrective actions are being taken to avoid the liability and have no penalties?

Any and all help is greatly appreciated.

Thanks

Dave