The Lummi Nation urged federal officials Wednesday to launch an emergency response to help two ailing southern-resident killer whales — but how do you call for help? The unprecedented government shutdown, continuing into its fourth week, has stymied any attempt by the tribe or veterinarians ready to help killer whales K25 and J17, among the 75 remaining southern residents that frequent Puget Sound. The policy makers and scientists with the National Oceanic and Atmospheric Administration who would approve and coordinate any such response, such as for the emergency rescue plan for J50 last summer, are unavailable during the shutdown. The emergency stranding network operated by non-federal personnel under contract to NOAA is continuing to operate, said Lauren DeMaio, the marine-mammal-stranding assistant under contract for Lynker Technologies. The tribe what was learned in the planning to rescue J50 could be deployed now, before it is too late.