Opening Cross: Liberté, Egalité et Latency: Crackdown on Co-Lo?

As speed has become such a central component to market data distribution and the growth of algorithmic trading, co-location - the ability for trading firms to place their trading systems in or near to exchange datacenters to reduce physical distance between themselves and an exchange's data and matching engine - has become a crucial weapon in the low-latency arms race.

To me, co-location is not some evil enabler of front-running, but simply a replication of old exchange floors - where traders