One of the biggest obstacles to the use of electric cars has been a lack of public places for drivers to charge their batteries. That's beginning to change. The number of charging stations is poised to make a surge. Fueled by millions in grant money first approved as part of the federal economic stimulus package, state, local governments and businesses are working at an accelerated pace to set up charging stations. By the end of the year, anyone with a chargeable vehicle will be able to drive an "electric highway" to Canada, Oregon or across Stevens Pass without having to...