AP via The Wall Street Journal reports President Barack Obama has postponed his planned trip Tuesday to a General Electric factory in Schenectady, and The White House says it will be rescheduled. Obama called on people in the United States to observe a moment of silence at 11 a.m. EST Monday to honor victims of the Arizona shooting. Congresswoman Gabrielle Giffords was shot at a public event Saturday morning, with six people killed, and 12 others injured... Earlier Sunday, the shooting also precluded the national coming-out of local Congressman Chris Gibson, who was scheduled to be featured in ABC's "This Week" program, but was bumped due to the events in Arizona.