On the "CBS News Weekend Roundup", host Allison Keyes gets the latest from CBS's Scott MacFarlane on the push to avert a railroad strike that could have crippled the economy. CBS's Michael George on legislation protecting marriage for interracial and same sex couples. In the Kaleidoscope, as the world commemorates World AIDS Day, Allison takes a look at the virus at the global level, and also at what patients need now. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.