Take the following as truth: We have not seen anything that demonstrates that every coal-fired power plant would be able to achieve 90 percent source-specific controls for mercury by 2007, without considerable fuel switching, which would be very disruptive to our economy and undermine energy security.
Then the following statement: "We haven't seen anything that shows that coal-fired plants can hit the goals, so they need to be shut down." is true, false, or inconclusive?