In an unclassified letter dated February 23, 2016, USA's Director of National Intelligence James Clapper informed US Senator John McCain that China has the capability to provide basic self-defense at its Spratly Islands outposts. Stating that it has installed surveillance systems to improve situational awareness and is building airfields and ports that can support military operations, James Clapper said US Intelligence assesses that China has established the necessary infrastructure to project military capabilities including the deployment of modern fighter aircraft, surface-to-air missiles (SAMS), coastal defense cruise missiles, as well as increased presence of People’s Liberation Army Navy (PLAN) surface combatants and China Coast Guard (CCG) large patrol ships. The letter added that China has installed military radars, most likely air-surveillance/early warning radars, at Cuarteron and Fiery Cross Reefs and a beacon for aircraft direction at Fiery Cross. The letter also said that US Intelligence does not assess that China will conduct reclamation efforts in the East China Sea.