Q: You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").
Paragraph- Sent 1: On December 4, as news came in about the discoveries in Jordan, National Security Council (NSC) Counterterrorism Coordinator Richard Clarke wrote Berger, "If George's [Tenet's] story about a planned series of UBL attacks at the Millennium is true, we will need to make some decisions NOW."Sent 2: He told us he held several conversations with President Clinton during the crisis.
Sent 3: He suggested threatening reprisals against the Taliban in Afghanistan in the event of any attacks on U.S. interests, anywhere, by Bin Ladin.
Sent 4: He further proposed to Berger that a strike be made during the last week of 1999 against al Qaeda camps in Afghanistan-a proposal not adopted.
Sent 5: Warned by the CIA that the disrupted Jordanian plot was probably part of a larger series of attacks intended for the millennium, some possibly involving chemical weapons, the Principals Committee met on the night of December 8 and decided to task Clarke's Counterterrorism Security Group (CSG) to develop plans to deter and disrupt al Qaeda plots.
Sent 6: Michael Sheehan, the State Department member of the CSG, communicated warnings to the Taliban that they would be held responsible for future al Qaeda attacks."Sent 7: Mike was not diplomatic," Clarke reported to Berger.
Sent 8: With virtually no evidence of a Taliban response, a new approach was made to Pakistan.
Sent 9: 13 General Anthony Zinni, the commander of Central Command (CENTCOM), was designated as the President's special envoy and sent to ask General Musharraf to "take whatever action you deem necessary to resolve the Bin Laden problem at the earliest possible time."Sent 10: But Zinni came back emptyhanded.
Sent 11: As Ambassador William Milam reported from Islamabad, Musharraf was "unwilling to take the political heat at home."Sent 12: The CIA worked hard with foreign security services to detain or at least keep an eye on suspected Bin Ladin associates.
Sent 13: Tenet spoke to 20 of his foreign counterparts.
Sent 14: Disruption and arrest operations were mounted against terrorists in eight countries.
Sent 15: In mid-December, President Clinton signed a Memorandum of Notification (MON) giving the CIA broader authority to use foreign proxies to detain Bin Ladin lieutenants, without having to transfer them to U.S. custody.
Sent 16: The authority was to capture, not kill, though lethal force might be used if necessary.16Tenet would later send a message to all CIA personnel overseas, saying, "The threat could not be more real. 
Question: When do the events in the whole article take place?.
A:
1, 4, 5, 15.