Photo by jglsongsBack when Metro was trying to finalize its huge deal with Parsons Transportation Group, we asked to see all the letters and e-mails between Metro and the Washington Group -- negotiations there had fallen apart in early 2008 -- to possibly shed some light on the hold-up. We're still not sure why the Washington deal soured, because apparently there were no letters or e-mails exchanged between the two companies for the final six months of negotiations. (The last e-mail we got from