# File lib/ec2/ec2.rb, line 1423
    def delete_tag(resource_id, key, value = nil)
      request_args = {"ResourceId.1" => resource_id.to_s, "Tag.1.Key" => key.to_s}
      request_args["Tag.1.Value"] = value.to_s if value

      link = generate_request("DeleteTags", request_args)
      request_info(link, RightBoolResponseParser.new(:logger => @logger))
    rescue Exception
      on_exception
    end