As more of the story is coming out, this "July meeting" might not have the significance it's being inflated to.

From this news story:

The CIA briefing didn't provide the exact timing or nature of a possible attack, nor did it predict whether it was likely to take place in the United States or overseas, said three former senior intelligence officials.

They spoke on condition of anonymity because the report remains highly classified.

The briefing "didn't say within the United States," said one former senior intelligence official. "It said on the United States, which could mean a ship, an embassy or inside the United States."

Of course, take this for what it's worth, since you know what I think of "anonymous sources" like this.