I've always found it rather haunting to watch old footage of my grandfather, Dwight Eisenhower, giving his televised farewell address to the nation on Jan. 17, 1961. The 50-year-old film all but crackles with age as the president makes his earnest, uncoached speech. I was 9 years old at the time, and it wasn't until years later that I understood the importance of his words or the lasting impact of his message.

Of course, the speech will forever be remembered for Eisenhower's concerns about a rising "military-industrial complex," which he described as "a permanent armaments industry of vast proportions" with the potential to acquire - whether sought or unsought - "unwarranted influence" in the halls of government.

The notion captured the imagination of scholars, politicians and veterans; the military-industrial complex has been studied, investigated and revisited countless times, including now, at its 50th anniversary. Looking back, it is easy to see the parallels to our era, especially how the complex has expanded since Sept. 11, 2001. In less than 10 years, our military and security expenditures have increased by 119 percent. Even after subtracting the costs of the wars in Iraq and Afghanistan, the budget has grown by 68 percent since 2001. In 2010, the United States is projected to spend at least $700 billion on its defense and security, the most, in real terms, that we've spent in any year since World War II.