A sightline, sight line or visual axis, is a normally unobstructed line-of-sight between an intended observer (or spectator) and a stage, arena, or monument, for example. Sightlines are a particularly important consideration in theatre and stadium design, road junction layout and urban planning. sightline, sight line or visual axis, is a normally unobstructed line-of-sight between an intended observer (or spectator) and a stage, arena, or monument, for example. Sightlines are a particularly important consideration in theatre and stadium design, road junction layout and urban planning.
The CIA does do undercover (spy like) procedures because sometimes it has to but in actuality most of its information comes from people who offer to supply information. These people provide support to the CIA in support of their ideological, religious, political and personal beliefs. Some for vengence and others just out of greed.
The main difference is in authority, jurisdiction, and purpose. The FBI and CIA are strictly American organizations (theoretically) under the control of the United States government and Congress. INTERPOL is an autonomous intergovernmental organization, funded through its member countries.