The deepening of global Internet infrastructure comes accompanied with an invigorated capacity and intent by adversaries to control the information that flows across it. Inextricably, political motivations and embedded power structures underlie the networks through which we interpret and understand our societies and our world - censorship threatens the integrity of the public sphere itself. The increasing technical sophistication of information controls deployed by censors in adversarial network environments around the world can be uniquely viewed and researched by circumvention tool providers, whose work continues to preserve access to the open Internet for all communities. Through this presentation, we endeavour to share insights gained from the front lines of this technical contest.