5 Things to Know This Morning

April 24, 2013— -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. 70 Dead in Bangladesh Garment Factory Collapse
An eight-story building housing several garment factories collapsed near Bangladesh's capital Wednesday morning, killing at least 70 people and trapping many more in the rubble.

2. FBI Searches 2nd Mississippi Home in Ricin Probe
Law enforcement officials searched the home of a second Mississippi man implicated in the mailing of ricin poison-laced letters to the president and a U.S. senator. On Tuesday, charges were dropped without explanation against the celebrity impersonator, Paul Kevin Curtis, who was arrested in the case last week.

3. Lawmakers Grill FBI on Boston Bombing Investigation
Lawmakers are asking tough questions about how the government tracked suspected Boston Marathon bomber Tamerlan Tsarnaev when he traveled to Russia last year,

4. Justice Dept. Says Armstrong Was 'Unjustly Enriched'
The Justice Department laid out its case in a lawsuit against Lance Armstrong on Tuesday, saying the cyclist violated his contract with the U.S. Postal Service and was "unjustly enriched" while cheating to win the Tour de France.

5. Hollywood Altering Movies for Chinese Audiences
Beijing is having increasing success in pressuring Hollywood into deleting movie content it finds objectionable, demanding changes in depictions of sex and violence, or denigrations of the Chinese leadership. American studios have begun sanctioning alternate versions of films specially tailored for Chinese audiences, like "Iron Man 3" debuting in theaters around the world later this week.