Keeping the Washignton Monument safe from terrorist has proven to be aesthetically problematic. Otherwise known as an ugly temporary structure.
Bruce Schneier has a great idea that would solve the problem. Close the monument.
The empty monument would symbolize our war on the unexpected, -- our overreaction to anything different or unusual -- our harassment of photographers, and our probing of airline passengers. It would symbolize our "show me your papers" society, rife with ID checks and security cameras. As long as we're willing to sacrifice essential liberties for a little temporary safety, we should keep the Washington Monument empty.
The ideal irony in honoring the general and president who fought so hard for the liberties and freedoms we now deny ourselves because we're so damn scared.