By Brent Lang LOS ANGELES (TheWrap.com) – The garage where Deep Throat helped Bob Woodward break news about the Nixon administration's involvement in the Watergate break-in and cover-up has a date with the wrecking ball. The Arlington, Va. parking structure will be torn down and replaced with an apartment building and a office building as part of a redevelopment project, according to a report on ARLNow.com. The nondescript edifice has a historical marker in front of it detailing its importance in the Washington Post's investigation into Watergate. …