High-profile events of this week have put hot-button issues back on the nation's agenda, but action on one is much more likely than it is on the other. Have the Democrats given up on gun control?  Will the Republicans shoot themselves in the foot by pushing too hard on abortion? Also, Democratic Senate Leader Harry Reid calls the war in Iraq "lost" and, on Reporter's Notebook, the case of Luis Posada, a 79-year old accused of terrorism by Cuba and Venezuela, and released on bail by a US Court of Appeals.