• Charlie Pierce of Esquire’s Politics Blog calls in at 10:30am ET / 7:30am PT to talk about questions surrounding Ed Snowden and the NSA

• Rolonda Watts, host of Sundays With Rolonda on BlogTalkRadio, calls in at 11:30am ET / 8:30am PT to talk about the Zimmerman Trial

• President Obama promised in an interview with PBS that his decision to arm Syrian rebels does not mean the United States is “taking sides in a religious war.” Obama also played down the “ruckus” over the NSA’s controversial surveillance programs.

• President Obama and Russian President Vladimir Putin said they would sign an agreement on securing and destroying nuclear material to prevent the spread of nuclear weapons, replacing a 1992 deal that expired on Monday.

• A key committee in the Republican-led House is preparing to cast its first votes on immigration this year, on a tough enforcement-focused measure that Democrats and immigrant groups are protesting loudly.

• The FBI saw enough merit in a reputed Mafia captain’s tip to once again break out the digging equipment in Michigan in search of the elusive remains of former Teamsters union leader Jimmy Hoffa, last seen alive when he left for lunch with two mobsters 38 years ago.