Most Popular stories from February 22

February 22     FOLLOW US      NEWS SPORTS LIFE MONEY TECH TRAVEL OPINION WEATHER USATODAY.COM   NEWS   NATION   Homeland Security chief: Be 'vigilant' at malls     Video terror threat apparently came from Somali militant group al-Shabaab.     Read Story

NEWS           911's fatal flaw: Lack of location data Millions of cellphone calls leave 911 dispatchers in the dark about caller's location.     MONEY           Retirement: When you should take Social Security Author: Some people leave "tens of thousands of dollars" of Social Security benefits on the table.     OLYMPICS           Michael Phelps gets engaged to girlfriend Nicole Johnson To girlfriend Nicole Johnson.     POLITICS           Hostage's father questions 'no ransom' policy "They put policy in front of American citizens' lives," says father of Kayla Mueller.     POLITICS           GOP candidates asked: Does Obama love America? Question about President Obama's patriotism puts 2016 GOP contenders on the spot.     NASCAR           2015 Daytona 500 fan guide: Start time, lineup and more Fan guide to the Great American Race on Sunday     NASCAR           Final time: Jeff Gordon full of magical moments at Daytona Gordon begins his drive for a fourth Daytona 500 victory on the pole Sunday.     MOVIES           Razzie Awards 'honor' Hollywood's worst A couple of Camerons - Kirk and Diaz - clean up.     WORLD           Family brands suspected ISIL recruiter 'a disgrace' Three teen girls left London on Tuesday on a flight to Turkey.     The Day In Pictures Gallery Kids take a break from playing ice hockey on Mirror Lake to watch a dogsled pass in Lake Placid, N.Y. on Feb. 22.     Popular Stories Homeland Security chief: Be 'vigilant' at malls 911's fatal flaw: Lack of location data Retirement: When you should take Social Security