When pursuing our foreign policy objectives, which malevolent entity should we focus most on weakening? Al-Qaeda has been pursuing a campaign of terror against the United States for almost two decades, and although it has been severely crippled in its strongholds, it shows no signs of relenting. Iran, on the other hand, appears to be developing a nuclear weapon in contravention of international law, and it supports anti-US and anti-Israel dictators and death squads across the Arab World - but it has been decades since it last was openly hostile to the US. So when it comes down to fighting one or the other, who should we choose?
NOTE: this is not an implicit reference to the conflict in Syria or anywhere else, I'm just curious to see what the opinion will be.