(CNN) -- Politics are politics, and partisan congressional challenges over the death of Ambassador Chris Stevens and other Americans in Benghazi, Libya, last September were inevitable.
But while some of the questions Secretary of State Hillary Clinton was asked in her appearance before the Senate Foreign Relations Committee bordered on politics at their worst, some represented democracy at its best: A legitimate challenge of how the government works. The fact is, we do need to ask serious questions about the way our diplomats function, how they are deployed and protected.
In her responses, Clinton took responsibility, as the top official in every department always must. The question now, however, is what, if anything, will we really learn from the events that led to the deaths of Stevens and his colleagues?
Do we actually learn something from their courage and sacrifice, and the similar experience of other American diplomats and officers that have faced similar attacks in the past? Or do we go on playing a pointless blame game, creating a climate that discourages our diplomats, U.S. military advisory teams and intelligence officers from taking necessary risks -- and relies even more on fortifying our embassies.
Three lessons here. The first: Virtually every post mortem that relies on the blame game has the same result. There is always someone who asked for more resources and warned of the risk before the event. There are always enough intelligence indicators so that once you go back -- knowing the pattern of actual events -- it becomes possible to predict the past with 20-20 hindsight.
The problem is that the post mortems and hearings tend to be useless. Every prudent security officer has always asked for more; the indicators that could provide warning with 20-20 hindsight will still be buried in a flood of other reporting that warns of crises that don't take place; U.S. officials will still have to deal with what intelligence experts call "noise" -- the vast amount of reporting and other data that make it impossible to sort out the right information until the event actually occurs and the patterns are known. All of this makes it hard to know what request or warning ever matters.
Yes, intelligence and warning can always be improved if the post mortem is realistic and objective. But the resulting improvements will never be enough. No one will ever assess all the risks correctly, U.S. diplomats and other Americans will be vulnerable when they operate in a hostile environment, and risk-taking will remain inevitable.
The second lesson is that we cannot deal with crises like the political upheavals in the Arab world, or the more direct threats that countries like Iran and North Korea can pose, unless our diplomats and military advisers take risks -- and more casualties -- in the process.
Stevens and those around him did what had to be done. These are the teams that can help lead unstable countries towards democracy and stability. They are the crucial to our counterterrorism efforts in the field and to building up the military security capabilities of developing states. They are key to uniting given factions, creating effective governance, and persuading states to move toward development and greater concern for human rights.
They can only be effective if they are on the scene, work with the leaders and factions involved, and often go into harms way where there are terrorist and military threats. Like Stevens, they cannot wait for perfect security, stay in a safe area, or minimize risks and deal with the realities of Libya, filled with local power struggles, extremist elements and potential threats.
We need risk-takers. We need them in any country that is going through the kind of upheavals taking place in Libya, as well as in countries where our enemies operate, and semi-war zones like Afghanistan, Iraq, Somalia, Syria, and Yemen. We need diplomats, U.S. military advisory teams, and intelligence officers that reach far beyond our embassies and go into high risk zones. We need to reward and honor those risk-takers, not those who shelter in safety and avoid the risks they should take or fear their career will be damaged if anyone is killed or hurt.
The third lesson is that we do need to steadily strengthen our ability to provide secure mobility, better intelligence, better communications, and better protection for those diplomats, U.S. military advisory teams and intelligence officers. We need to be able to better provide emergency help to those American NGO personnel and businessmen who take similar risks.
We need both an administration and a Congress that look beyond the blame game and understand that some things are worth spending money on. We need them to understand that what we once called the Arab Spring is clearly going to be the Arab Decade, and we face different but equally real risks in the field in Asia, Africa, and Latin America.
It is far better -- and cheaper even, in the medium term -- to fund strong U.S. country teams, military advisers, counterterrorism teams and development efforts than to let nations collapse, to let extremists take over, to lose allies, and see American NGOs and businesses unable to operate.
We need to see what new methods and investments can protect our people in the field and reduce the risks they should be taking. The answer may be special communications, intelligence system, helicopters and armored vehicles, emergency response teams and new career security personnel to replace contractors and foreign nationals.
What the answer is not is partisan blame, risk avoidance, punishing those who do take risks for the result, and failing to make the improvements in security for risk takers -- while building larger fortress embassies. If you want to honor the Americans lost in the line of duty, focus on the future and not the past.
The opinions expressed in this commentary are solely those of Anthony Cordesman