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Sunday's Guests (July 22): Taxes, global warming and the food supply, the crisis in Syria

On Sunday's show we'll be talking about the vastly different experiences of George and Mitt Romney when it comes to taxes. We'll also examine the effect of climate change on our food supply, and ask whether the current drought covering large swaths of the U.S. is the new normal.  Plus, we'll examine the escalating violence in Syria and its stakes not just for the region, but for the U.S. and our allies as well.

Joining Chris at the table will be:

Gary Gensler (@cftc), chairman of the Commodity Futures Trading Commission since May 2009. Gensler previously served as the under-secretary of domestic finance at the Treasury Department.

Bryn Bird, second-generation farmer in Granville, Ohio at Bird's Haven Farms.  She is also a field outreach coordinator for Rural Coalition.

Akil Hashem (@AkilHashem), retired brigadier general who served in the Syrian army for 27 years (1962-1989).

Col. Jack Jacobs (@ColJackJacobs), Medal of Honor recipient, a member of the Council on Foreign Relations and military analyst for MSNBC.

Stacy-Marie Ishmael (@s_m_i), adjunct professor at CUNY Graduate School of Journalism, former editor of "FT Tilt."

Josh Barro (@jbarro), contributor to Forbes.com with "The Barrometer."

Amy Goodman, host of Democracy Now!, author of "Breaking the Sound Barrier," and syndicated columnist for King Features.

Sarab Al-Jijakli, member of the Syrian Expatriates Organization and co-founder of the National Alliance for Syria.

::Blogged by Katherine Guthrie (@kguth1130), production assistant for Up w/ Chris Hayes ::