By Juliet Eilperin ALBUQUERQUE -- In an interview with reporters aboard his campaign bus, Sen. John McCain (R-Ariz.) modified his assertion today that the U.S. could send three additional brigades to Afghanistan by drawing on troops that were leaving Iraq. The presumptive GOP nominee, who made his initial remarks in a speech before an Albuquerque audience, told reporters just minutes after the event that he might call on NATO to supply part of the additional troops he hopes to send to the region. "We need to work that out, we need to have greater participation from our NATO allies, and we need a lot more help from our NATO allies," the senator said. "We need to -- I laid it out in my speech, we need to have strategy, not just an injection of troops. I think that's true of all counterinsurgencies." Our NATO allies, he added, can provide manpower ...