"What's more, many passengers came up asking how they can get a discount. They seemed confused but very concerned about the discounts,"said the worker.
According to Beijing Youth Daily, four lines opened on Sunday, namely Line 7, Line 14 (East Part), and sections of Line 15 and the Line 6 were extended. The four new lines adopted the same security check system as airports. Not only passengers' bags and belongings will go through the x-ray check, but they will also be frisked.