2. President Obama heads to the National Defense University in Washington today to give a major speech on national security. Wednesday the administration acknowledged that drone strikes in Yemen and Pakistan have killed four Americans since 2009.

 

　　3. Poor construction materials are being blamed for last month's building collapse that killed more than 1100 garment workers in Bangladesh. That's the conclusion of a government investigation which also blamed building code violations.

 

　　4. Lebron James scored on a last second layup to give the Miami Heat a 103 to 102 victory over the Indiana Pacers in game one of the NBA's Eastern Conference Finals. James scored 30 points in a game that saw the lead change hands 17 times.