According to a commentary, this study is an important and welcome advance in elucidating what it takes to improve HIV outcomes in populations where other interventions have largely failed. It notes number needed to treat to realize the benefit of the intervention is 7, a favourable result compared with other biomedical and behavioural interventions, though unfortunately, the authors do not provide a cost analysis, and adopting, scaling, and sustaining a 12-session intervention may be a challenge for public health programs. Despite these caveats, it suggests that the LINK-LA (Linking Inmates to Care in Los Angeles) provides a new, relatively feasible behavioural intervention to successfully ensure continuity of care when transitioning from incarceration to community settings. It concludes: “As things stand, even if LINK-LA and interventions with similar efficacy were fully deployed and their effectiveness matched their efficacy, we would still be considerably far from the goal of the United Nations Program on HIV/AIDS (UNAIDS) that 90% of people engaged in care be virologically suppressed.”