A recent global upsurge in Islamist terrorism is rekindling a debate over the extremists' motivations that first spiked after the 9/11 attacks: Is the violence aimed at who we (the West) are - or at what we do?
For some experts, the attacks - whether in London or Sharm el-Sheikh, Egypt - are aimed at the West for what it is doing: in other words for its policies, like the war in Iraq. Others insist that the perpetrators are more at odds with the ideals of the West and "who we are."