Welcome to Tuesday's edition of CNN STUDENT NEWS. This is our last show before the Thanksgiving holiday.First up, U.S. Defense Secretary Chuck Hagel is resigning.It's been the greatest privilege of my life. The greatest privilege of my life to lead and most important to serve,to serve with the men and women of the Defense Department and support their families.And President Obama said the lives of U.S. service men and women have always been at the center of Hagel's service.The president also called Hagel exemplary and says his decision to resign didn't come easily, but several sources told CNN that the president forced Hagel out.A senator who recently spoke to Hagel said he was frustrated with the Obama administration.One reason being a lack of strategy for dealing with ISIS terrorist group. The White House said disagreement over Syria had nothing to do with Hagel's resignation.The Defense Secretary is a cabinet position. It oversees the U.S. military.Hagel will stay on until the next Defense Secretary is confirmed. That has to be done with the advice and consent of the Senate.The verdict from a grand jury in Ferguson, Missouri: 28-year old police officer Darren Wilson will not be charged in the shooting death of 18-year old Michael Brown.The grand jury's decision came about 3.5 months after Officer Wilson shot Brown who was unarmed.There was a confrontation between them on August 9. Some witnesses and those who supported Brown said he was trying to surrender when Officer Wilson shot him.