Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].
Example: At least Raheem Morris finally has the name of the Bucs' starting quarterback in the back of his mind.
 He wants to make sure he made the decision with his head and not just his heart.
 That's why Morris declined to name his choice between Byron Leftwich and Luke McCown on Friday until after one last consultation with his coaching staff.
 After that  Morris said  he would inform the owners  then his team before making the eagerly awaited announcement. Players were off Friday  so an announcement could come this morning.
 "We'll have a decision here in the near future " Morris said. "I think we've got to go with who we think gives us the best chance to win.
Example solution: Raheem Morris
Example explanation: Here the main entity is Raheem  Morris since the main topic of the document is about him starting as quarterback.

Problem: According to the Washington Times   Secretary Kirstjen Nielsen  revealed that the DHS prevents an average of seven people marked on the terrorist watch list a day  adding up to 50 people a week.
The numbers have  Nielsen  asking for more scrutiny on those looking to immigrate here as refugees  and defending President Trumpâs comments on tougher screening for immigrants.
âThese changes will not only improve security but importantly they will help us better assist refugees fleeing persecution â  she  said.
 She  also believes that the border security Trump has proposed  such as the wall  is an integral part of keeping America safe.
âWe cannot let this moment slip away. Now is the time â  she  said. âWe cannot afford to kick the can down the road any farther.â
 Nielsen  noted that many of the terrorist attacks dating back five years can be traced back to lax screening processes put in place by the Obama administration:
 Ms. Nielsen  said past administrations had not been as strenuous in attempting to weed out would-be terrorists as the current one  and pointed to a string of attacks dating back five years â to the heart of the Obama administration. And  she  again cited a controversial administration report that found of more than 500 people convicted of terrorism-related crimes in U.S. courts since 2001  three-quarters were foreign-born.

Solution: Kirstjen Nielsen