At Tesla we do recognize that as a long term thing, and we are developing a high speed charger, which is capable of recharging a battery pack in about 40 minutes or so, and we are going to offer that for free to our customers, we are going to just pick locations on the the major interstates every 100 miles or so, where there is a decent amount of traffic, and just install them for free. If they start to see significant usage, then we might put a card reader on them, or something. I do think that is an important thing to address, hence we are going to address it. And also we are happy to sell those fast chargers to others, if they want to install them in places.