“The World Trade Center Memorial Museum’s opening has been pushed back beyond the original target date of 2009, the Daily News has learned. Though the WTC Memorial, with two sunken pools marking where the twin towers stood, is still due to welcome its first visitors in 2009, the adjoining museum containing WTC artifacts won’t open until mid-2010. The delayed museum debut must await completion of a visitors center, which will provide access to the museum’s underground exhibition space.”