White House rivals visit Ground Zero
White House rivals John McCain and Barack Obama visited Ground Zero together on Thursday to commemorate the seventh anniversary of the 9/11 terrorist attacks.
The last time Obama visited Ground Zero was as a presidential candidate on Sept. 11, 2008, when 1 World Trade Center -- then commonly known as the Freedom Tower -- was below street level, the memorial plaza had yet to be built, and the entire project was mired in delays and cost overruns.