The National Broadband Network (NBN) has hit a couple of speed bumps. NBN Co reckons that vendors over-priced their bids to construct the network, and earlier this month the entire tender process was suspended. Then, the head of construction resigned. Critics pounced. But Communications Minister Senator Stephen Conroy reckons we shouldn't get caught up in the "hysteria", but should wait and see what the "Plan B" tender process delivers.