Input: The center of an atom is held together by powerful forces. This gives them a huge amount of stored energy. This type of energy is called nuclear energy. This energy can be released and used to do work. This happens in nuclear power plants where they split apart the nucleus of an atom. This splitting apart is called nuclear fission. Another type of nuclear energy happens in the Sun. Here the atoms nuclei are not split apart. Instead, the nuclei of the atoms are fused, or joined together. This process is called nuclear fusion. Some of the suns energy travels to Earth. This energy from nuclear fusion warms the planet and provides the energy for photosynthesis.

Does the response "In nuclear fission, the nucleus of the atom is split apart. In nuclear fusion, atoms are fused, or joined together" correctly answer the question "How do nuclear fission and nuclear fusion differ?"?

OPTIONS:
- no
- yes
***
Output: yes

We do not know exactly how the hijackers gained access to the cockpit; FAA rules required that the doors remain closed and locked during flight. Ong speculated that they had "jammed their way" in. Perhaps the terrorists stabbed the flight attendants to get a cockpit key, to force one of them to open the cockpit door, or to lure the captain or first officer out of the cockpit. Or the flight attendants may just have been in their way. At the same time or shortly thereafter, Atta-the only terrorist on board trained to fly a jet-would have moved to the cockpit from his business-class seat, possibly accompanied by Omari. As this was happening, passenger Daniel Lewin, who was seated in the row just behind Atta and Omari, was stabbed by one of the hijackers-probably Satam al Suqami, who was seated directly behind Lewin. Lewin had served four years as an officer in the Israeli military. He may have made an attempt to stop the hijackers in front of him, not realizing that another was sitting behind him. The hijackers quickly gained control and sprayed Mace, pepper spray, or some other irritant in the first-class cabin, in order to force the passengers and flight attendants toward the rear of the plane. They claimed they had a bomb. About five minutes after the hijacking began, Betty Ong contacted the American Airlines Southeastern Reservations Office in Cary, North Carolina, via an AT&T airphone to report an emergency aboard the flight. This was the first of several occasions on 9/11 when flight attendants took action outside the scope of their training, which emphasized that in a hijacking, they were to communicate with the cockpit crew. The emergency call lasted approximately 25 minutes, as Ong calmly and professionally relayed information about events taking place aboard the airplane to authorities on the ground. At 8:19, Ong reported:"The cockpit is not answering, somebody's stabbed in business class-and I think there's Mace-that we can't breathe-I don't know, I think we're getting hijacked." She then told of the stabbings of the two flight attendants. At 8:21, one of the American employees receiving Ong's call in North Carolina, Nydia Gonzalez, alerted the American Airlines operations center in Fort Worth, Texas, reaching Craig Marquis, the manager on duty. Marquis soon realized this was an emergency and instructed the airline's dispatcher responsible for the flight to contact the cockpit. At 8:23, the dispatcher tried unsuccessfully to contact the aircraft.

Question: "How does Ong suspect the hijackers gained access to the cockpit?"

OPTIONS:
- no
- yes

Answer: "They used a key"

Response: no

In March 2001, Rice asked the CIA to prepare a new series of authorities for covert action in Afghanistan. Rice's recollection was that the idea had come from Clarke and the NSC senior director for intelligence, Mary McCarthy, and had been linked to the proposal for aid to the Northern Alliance and the Uzbeks. Rice described the draft document as providing for "consolidation plus," superseding the various Clinton administration documents. In fact, the CIA drafted two documents. One was a finding that did concern aid to opponents of the Taliban regime; the other was a draft Memorandum of Notification, which included more open-ended language authorizing possible lethal action in a variety of situations. Tenet delivered both to Hadley on March 28. The CIA's notes for Tenet advised him that "in response to the NSC request for drafts that will help the policymakers review their options, each of the documents has been crafted to provide the Agency with the broadest possible discretion permissible under the law." At the meeting, Tenet argued for deciding on a policy before deciding on the legal authorities to implement it. Hadley accepted this argument, and the draft MON was put on hold. As the policy review moved forward, the planned covert action program for Afghanistan was included in the draft presidential directive, as part of an "Annex A" on intelligence activities to "eliminate the al Qaeda threat." The main debate during the summer of 2001 concentrated on the one new mechanism for a lethal attack on Bin Laden-an armed version of the Predator drone. In the first months of the new administration, questions concerning the Predator became more and more a central focus of dispute. Clarke favored resuming Predator flights over Afghanistan as soon as weather permitted, hoping that they still might provide the elusive "actionable intelligence" to target Bin Laden with cruise missiles. Learning that the Air Force was thinking of equipping Predators with warheads, Clarke became even more enthusiastic about redeployment. The CTC chief, Cofer Black, argued against deploying the Predator for reconnaissance purposes. He recalled that theTaliban had spotted a Predator in the fall of 2000 and scrambled their MiG fighters. Black wanted to wait until the armed version was ready. "I do not believe the possible recon value outweighs the risk of possible program termination when the stakes are raised by the Taliban parading a charred Predator in front of CNN," he wrote.

Question: "Why did Cofer Black, argue against deploying the Predator for reconnaissance purposes?"

Response: "He believed they would crash"
OPTIONS:
- no
- yes

A: no

Howland talked but little on their way back to camp. The scene that he had just witnessed affected him strangely; it stirred once more within him all of his old ambition, all of his old enthusiasm, and yet neither found voice in words. He was glad when the dinner was over at Thorne's, and with the going of the mail sledge and the senior engineer there came over him a still deeper sense of joy. Now _he_ was in charge, it was _his_ road from that hour on. He crushed MacDonald's hand in a grip that meant more than words when they parted. In his own cabin he threw off his coat and hat, lighted his pipe, and tried to realize just what this all meant for him. He was in charge--in charge of the greatest railroad building job on earth--_he_, Jack Howland, who less than twenty years ago was a barefooted, half-starved urchin peddling papers in the streets where he was now famous! And now what was this black thing that had come up to threaten his chances just as he had about won his great fight? He clenched his hands as he thought again of what had already happened--the cowardly attempt on his life, the warnings, and his blood boiled to fever heat. That night--after he had seen Meleese--he would know what to do. But he would not be driven away, as Gregson and Thorne had been driven. He was determined on that.

Question: "Who had an attempt made on his life?"

Response: "John Thorne"
OPTIONS:
- no
- yes

A:
no