What are two primary missions of the Transportation Security Administration (TSA)?

The primary missions of the Transportation Security Administration (TSA) focus on preventing terrorist attacks and protecting the U.S. transportation network. This mission is rooted in the need to ensure the safety and security of passengers, crew, and the critical infrastructure associated with various modes of transport, especially in the aftermath of the September 11 attacks.

Preventing terrorist attacks is fundamental to the TSA's operations, as they implement measures such as screening passengers and baggage at airports, deploying security personnel, and utilizing advanced technology to disrupt the potential threats to the transportation system. Protecting the U.S. transportation network encompasses safeguarding not just air travel, but also other transportation forms, ensuring that all aspects remain secure against any malicious intent.

While other options might mention essential activities related to transportation security, they don't encapsulate the overarching objectives of the TSA as effectively as the prevention of terrorist attacks and the protection of the transportation network.