Susan Rice, the U.S. ambassador to the United States, speaks to the media at the United Nations following Security Council Consolations after North Korea announced they have conducted a third nuclear test on February 12, 2013 in New York City. (Spencer Platt/Getty Images)

• News from Washington: U.S. ambassador to the United Nations Susan Rice is replacing Tom Donilon as Obama’s top national security advisor. Former White House advisor Samantha Power will fill Rice’s former role at the U.N. [Times of Israel]

• The Syrian military has launched repeated airstrikes as Syrian rebels make their way towards Homs via the Hama Plain. [NYT]

• Boston Marathon bombing suspect Dzhokhar Tsarnaev has apparently received nearly $1,000 in donations since his arrest—his family has received an additional $8,000. [ABC News]

• Denise Grollmus, who’s covered Poland’s Jewish revival for Tablet, is on the Guardian’s Sounds Jewish podcast discussing moving to Poland last year after discovering her family was Jewish. [Guardian]

• Columbia Business School Student Yael Silverstein has created a social media frenzy after insurance company Aetna denied her coverage for emergency surgery, which then was cancelled. [Storify]

• Brett Levi won Harvard’s Center for Middle Eastern Studies’ graduate thesis award for his research on the influence of Hasidic rabbis on the settler movement in Israel. [Harvard]