On GPS Sunday: Syria’s opposition leader, a top economics panel and talking Higgs boson.

Coming up on GPS Sunday at 10 a.m. and 1 p.m. ET, Fareed will host an all-star panel including Larry Kudlow, Zanny Minton Beddoes, Chrystia Freeland and Zachary Karabell to discuss the U.S. economy and November’s U.S. presidential election.

Fareed will also be speaking with Syrian opposition leader Abdul Basit Sieda about a reported massacre in Hama province, the recent discussions with Russian officials in Moscow and the opposition’s claims that Syrian President Bashar al-Assad remaining in power is a threat to regional stability.

Finally, astrophysicist Neil deGrasse Tyson has some fascinating insights into what exactly the “Higgs boson” is, what it could mean for science and why it matters that the so-called God particle looks likely to have been discovered in Europe and not the United States.