In case you missed this nugget in Sunday’s Examiner, Kytja Weir reports that the Tri-State Oversight Committee responsible for oversight of WMATA would like to see some proof that Metro’s decision to move its older, 1000-series rail cars to the middle of its trains is really making things any safer. The newspaper got hold of a letter sent to Metro on Friday which noted that the committee had previously requested that the agency perform a…