"After Trump's October summit with Xi, the US president told officials to avoid actions that would hurt the truce." [October summit]
The article explicitly contrasts Trump's trade ceasefire directive with the FCC's simultaneous actions: Commerce avoided export controls, Treasury halted sanctions, but the FCC proceeded with bans. The mechanism is institutional—the FCC has statutory authority over radio-frequency devices and a 'covered list' for security threats, giving it legal cover to act independently. This pattern generalizes beyond this moment: when executive-level geopolitical accommodation conflicts with agency-level security mandates, agencies with narrow technical jurisdiction can enforce restrictions the political leadership has deprioritized.