Transportation Security Specialist. Wed, 26 Jan 2022 10 : 26 : 09 GMT. You must be able to obtain and maintain a Top Secret Clearance. In cities across the country, you would secure airports, seaports, railroads, highways, and / or public transit systems, thus protecting America's transportation infrastructure and ensuring freedom of movement for people and commerce. You must complete a favorable Single Scope Background Investigation (SSBI). Tran...
