U.S. public schools get D+ for poor conditions: CNN

NEW YORK, Sept. 21 (Xinhua) -- While school infrastructure problems are a perennial challenge, U.S. national data and dismal stories from teachers suggest the crises are reaching an apex, CNN reported.

"We're getting to a critical stage now," Mike Pickens, executive director of the National Council on School Facilities, was quoted as saying. "The average age of a school building now is from 49 to 50 years," the highest in memory.