(Continued from page 20)

appearing recently in the ranks of the separatists.
• Also Thursday, an insurgent leader in eastern Ukraine said his fighters are holding four observers from the Organization for Security and Cooperation in Europe and promised that they would be released imminently.
• ___

• WASHINGTON (AP) -- President Barack Obama is a lover of games played on hard courts, baseball diamonds and in 10-yard increments. His two daughters are active in sports and, like many parents with children on athletic teams, he worries about their safety.
• But unlike many of those parents, Obama is uniquely positioned to help address the concerns.
• At the White House on Thursday, Obama was hosting a summit with representatives of professional sports leagues, coaches, parents, young athletes, researchers and others to call attention to the issue of youth sports concussions.
• Not enough is known about how the injuries may affect still-developing brains, the Institute of Medicine and the National Research Council said in a report last fall, and the issue concerns the president.
• Obama once said he'd "have to think long and hard" before allowing a son to play football because of the risk of head injury.
• ___
• Things to Know for Today
• Your daily look at late-breaking news, upcoming events and the stories that will be talked about today:
• 1. OBAMA TO HIGHLIGHT CONCERNS OVER YOUTH SPORT CONCUSSIONS
• The president is hosting a summit with league representatives, parents and athletes to call attention to the issue and announce financial pledges to improve athletic safety.
• . MALAYSIAN JET SEARCHERS RULE OUT SITE WHERE "PINGS" HEARD
• ___