years. bnsf, the engine that connects us. caregiver. raymondjames advisor taylor s advice to help you live your life. life well planned. supporting social entrepreneurs and their solutions to the world s most pressing problems. schoolfoundation.org. the lemelson foundation, committed to improving lives through invention in the u.s. and developing countries, on the web at lemelson.org. supported by the macarthur foundation. committed to building a more just, verdant, and peaceful world. more information at mac arthur.org. and with the ongoing support of these institutions. this program was made possible the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. judy: the nato summit is underway in madrid, an alliance leaders have granted russia is the biggest threat to its peace and security. they also pledged more aid to ukraine as ukrainian president zelenskyy appealed via video link for membership. russia need