Those interested in insider trading should pay close attention to trading in non-securities. Especially in recent years, some of the most important enforcement events have far from public equity exchanges.
The only solution is for each of us to pull our money from publicly traded stocks and bonds. It's not that the companies or the people who work for them are bad, but that the trading system is being manipulated by a few people who are driven to make as much money as they can in the shortest time possible.
This happened for two reasons: greed and fear. Banks were manipulating their estimate of these rates in order to make money on tiny fractional differences: to the tune of millions of dollars per day.
When banking is so powerful that the very business the banks are chartered to serve cannot discipline its business unfriendly behavior through market pressure, we are in a serious state of affairs. What to do?