US: China cyberespionage puts 'enormous strain' on ties
![US: China cyberespionage puts 'enormous strain' on ties](http://bloximages.chicago2.vip.townnews.com/tdn.com/content/tncms/assets/v3/editorial/b/e2/be260351-baae-52b9-a30f-45f4707a7001/560061dd07856.image.jpg?resize=300%2C200)
WASHINGTON (AP) — Cyberespionage for economic gain by China is putting "enormous strain" on U.S.-China relations and needs to stop, President Barack Obama's national security adviser said Monday.