A caravan of some 3,000 Honduran migrants is marching through Guatemala on its way to the United States border.US President Donald Trump is threatening to cut aid to Guatemala and Honduras if the group is not stopped.Al Jazeera's Paul Chaderjian reports.- Subscribe to our channel: http://aje.io/AJSubscribe - Follow us on Twitter: https://twitter.com/AJEnglish - Find us on Facebook: https://www.facebook.com/aljazeera - Check our website: https://www.aljazeera.com/#Honduras #MigrantCaravan #Trump