(CNN) -- When it comes to negotiating with the Taliban, it's always one step forward, two steps back. Despite several serious rounds of violence this week, including the assassination of a top peace negotiator, the United States will continue to try to negotiate with the Taliban, experts say. Afghanistan has been violent for a long time, they argue. This week just brought more of the same. "[The United States] has been fighting for nearly 11 years, and we've already said we're not leaving until 2014," said C. Christine Fair, a Georgetown University Center for Peace and Security Studies professor who has worked in and studied the region for years.
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A man thought to be able to bring Taliban to the negotiating table was killed this week
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Observers say his death, and killings of NATO soldiers, won't derail peace process
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The U.S. has said it's negotiating with the Taliban to bring peace to Afghanistan
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