[Rep. Sam Graves] We will continue an examination on cybersecurity
challenges for the transportation and infrastructure sectors.  

[Rep. André D. Carson] A cyber attack on one portion of this sector can
have cascading effects on the entire system, with devastating impacts to
the public.  

[Nick Marinos] GAO has long emphasized the urgent need for the federal
government to improve its ability to protect against cyber threats to
our nation's infrastructure.   In fact, we designated cybersecurity as a
government-wide, high risk area since 1997.  Our federal government
needs to do a better job of implementing strategy, oversight, and
coordination among federal agencies and with the owners and operators
that are on the front lines of this digital battle.  Although agencies
deserve credit for implementing many of our recommendations, over 900
still have yet to be implemented, including over 50 related to improving
critical infrastructure cybersecurity. So clearly, there's a lot more
work to do, and we think that agencies need to move with a greater sense
of urgency to improve their cybersecurity protections.