NBC News Signal - October 25th, 2018

On tonight’s show, we trace the roots of the parody ISIS flag printed on the explosive sent to CNN. Minnesota looks like it’s about to send the first Somali refugee to Congress. As the migrant caravan heads toward the border, we explain how the group went from 160 Hondurans to around 7,000-strong. And as Apple demands a retraction of a story that says they’ve been compromised by Chinese spies, President Trump is facing questions about whether his own phone might be insecure.