The turmoil set off by Saudi Arabia’s decision to execute 47 prisoners – among them, a prominent Iranian Shia cleric – has put the Obama administration in a tight spot. Allies since the 1930s, one American administration after another has maintained strong ties with the Saudi kingdom. President Barack Obama appears to have been pinning his hopes on bringing long-time enemies, Saudi Arabia and Iran, together to help solve Syria – and by extension – extinguish the threat posed by ISIS. The United States is not deaf to human rights activists who prove over and over again that Saudi Arabia has silenced political dissent, in this most recent case, by beheading. But the U.S. has banked on the Saudis for cheap oil and influence in the Middle East. In turn, the Saudis had a regular customer and political cover when needed. The Saudis knew this execution would further stoke Shia-Sunni sectarian tensions in the region. What will it do to the cozy relationship between Riyadh and Washington?