And the next Balt-DC charts are due out Aug 2.

Makes perfect sense, in FAA context. Did something similar on the
Denver charts. 1995 ft tower (obstruction) went into operation
shortly before the DEN charts were published. Now, the FAA and NACO
*KNEW* the tower was there for over a year and refused to mark it on the charts
until the next 8 month publication cycle. So non-locals didn't know for
over a year that there was a major obstruction on the way in from
the east.