The first round of discoveries at the LHC has only increased the importance of searches for charged lepton flavor violation (cLFV). Fermilab's Mu2e experiment, its upgrade path, and the multiple-experiment capabilities of Project X offer unique opportunities to build a program searching for cLFV or performing measurements should it be found. The technology required will be useful in future facilities for neutrino factories or muon colliders. The first round of these experiments will start data-taking toward the end of this decade and almost immediately improve existing limits by several orders-of-magnitude. There is already significant European commitment through INFN and we welcome further participation.