Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top quarks at the Tevatron Collider is the best probe of this physics until the Large Hadron Collider turns on in the next century. I discuss aspects of the mass and angular distributions that can be measured in $\ttb$ production with the coming large data samples from the Tevatron and even larger ones from the LHC.

18 pages, TeX using harmac macros, plus 14 uuencoded figures appended at the end of the TeX file