After more than a decade of discovery physics at RHIC, major questions still remain concerning QCD color screening and the exact mechanisms governing parton energy loss in the deconfined nuclear medium, quark-gluon plasma, that is created in ultrarelativistic collisions of large nuclei.  To answer these questions, a collaboration led by P-25 has designed, built, and operated a new silicon tracking detector for the PHENIX experiment.  The Forward Silicon Vertex Tracker (FVTX) consists of over a million 75 micron wide silicon ministrips, read out by custom ASIC chips, and provides precise charged particle tracking at forward and backward rapidity.  With this device, the differences in suppression of quarkonia states with different radii can be measured to study the effects of color screening, and the nuclear effects on the light quarks, the heavy charm quark, and heavier bottom quark can be separately quantified for the first time, which places meaningful constraints on energy loss models.  This talk will discuss some of the open questions that remain at RHIC; the design, construction, and operation of the FVTX; and the current status of FVTX physics analyses.