There are words, he knows there must be. Words that will make all of this okay, that will let them postpone the explosion until they're somewhere safer, until they're ready to deal with the aftermath.
The words are there, he knows they are, but they keep flitting away before he can grasp them. They will not come, will not present themselves so that their makeshift family may stay intact.
The words fail to present themselves, though, and he knows what will happen as their substitutes fall out of his mouth. He knows that his cause is lost and that this will be the end of his dream, yet try as he might, he cannot stop them.
"They were just following orders!"