It's been nearly one week since the biggest prisoner swap since the Cold War took place, granting freedom for two Americans wrongfully detained.
But a 63-year-old teacher from Pennsylvania who was imprisoned for possessing a half-ounce of medically prescribed marijuana is among the ones left out of the deal.
While Marc Fogel remains behind bars in Russia, his family is working tirelessly to bring him back home.
To hear more, KCBS Radio anchor Patti Reising was joined by Malphine Fogel, Marc Fogel's mother.
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