Iran's continued pursuit of nuclear weapons, support for international terrorist organizations, and abhorrent human rights practices pose one of the greatest threats to global security.

The 20th century taught us how far unbridled evil can and will go when the world fails to confront it. It is time that we heed the lessons of the 20th century and stand up to these murderers. It is time that we end genocide in the 21st century.

I represent the Port of Philadelphia, and I know firsthand the important role that ports play in the national and global economy. I have also seen how simple accidents can have devastating impacts on the port system.

As many know, brain injury comes in many forms. The two most prevalent brain injuries - stroke and trauma - affect more than 2.2 million Americans, and these numbers are expected to grow.

We must hunt the terrorists down and kill them. There is no other way to respond to those so committed to the destruction of life.

The attacks in Jordan, just like those before it in Indonesia, Egypt, Spain and the United States, demonstrate that terrorism does not discriminate by race, ethnicity or region. Instead, terrorists indiscriminately target those seeking to live a peaceful, loving and free life.

Yet, only years after the Nazi-era, millions were sent to their deaths in places such as Cambodia, Bosnia and Rwanda, and the world once again took too long to act.