Subject
Pennsylvania Avenue (Washington, D.C.)
8
Security measures
6
Presidents Dwellings Security measures
4
Terrorism Prevention
4
Appropriations and expenditures
2
Washington (D.C.) Buildings, structures, etc
2
Buildings
1
Evaluation
1
Federal Triangle (Washington, D.C.)
1
Finance
1
Mall, The (Washington, D.C.)
1
Memorials
1
Parks
1
Pennsylvania Avenue (Washington, D.C.) Planning
1
Presidents Assassination Prevention
1
Presidents Dwellings
1
Presidents Dwellings Security measures Evaluation
1
Streets Planning
1
Streets Security measures
1
Terrorism Prevention Evaluation
1
Transportation Planning
1
United States Appropriations and expenditures
1