 Well, the Navy has always led when we've changed energy. We went from sail to coal in the middle of the 19th century. We went from coal to oil in the early part of the 20th century. We pioneered nuclear in the middle of the 20th century for transportation in our submarines and our carriers. Every single time, every single time that we changed energy sources, there were all these naysayers saying this is not going to work, you're trading something free to win for something that costs money, coal, you're giving up all those coaling stations to move to oil, nuclear will never work. You can never make it that small, you can never make it that safe. Every single time, every single time, they were wrong. And they're wrong this time and you're seeing that, you're seeing it in the private sector as the move toward alternative energy is picking up steam. And it's like the old Saudi oil minister said. The stone age didn't end because we ran out of stones. It ended because we invented something better.