Vulnerabilities of Railway transportation

Select a specific form of transportation in the U.S. and identify its vulnerabilities to a terrorist attack. Describe what measures have been taken since 9/11 to reduce its vulnerability, which agencies are responsibility for its protections and vulnerability reduction, and give specific examples in other countries where this form of transportation was successfully attacked by terrorists. Why do you believe that we have not suffered a similar attack as of yet here in the U.S.? Be very specific and thorough with your answers and be sure to cite and support them with outside references in APA. The type of transportation is railroad. Single spaced