Margaret Warner talks to former Reagan administration official Michael Pillsbury and The Nation's Robert Dreyfuss on what past endeavors by the United States to offer military aid to rebel movements can teach government officials today about providing weapons to the Syrian opposition.

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US President Donald Trump reacts after signing executive orders imposing tariffs on imported goods in the Rose Garden at the White House on April 2, 2025, in Washington, DC. (Andrew Harnik via Getty Images)