"I know that," the second man says. "Until we know why she," he gestures wildly at the monitors, "can cope with being a clone we won't be making progress."
"And the new selection protocols help how?"
"The new protocols weed out unstable subjects. The more stable subjects we have like her the closer we get to your 100% success rate."
"What makes her so special?"
"She was able to assimilate the knowledge that she had died and is now a clone very easy," he lies. How she took the news is only part of it. The more important part is that according to the new protocol she is not a suitable subject for cloning.