Putting the Blockchain at risk? Please elaborate.
essentially every bitcoin client will become part of a distributed unregulated security exchange, which might be considered illegal by regulators just about anywhere. Now whether or not such interpretation would stand up in court, I have no idea, but Id rather not see them get the chance to try it.
I forget who said it, but they likened a fight against Bitcoin to a fight against Algebra. Good luck with that. Colored Coins are the future.