According this just-released statement from the FBI: “The FBI has received unconfirmed information that a domestic group is planning to disrupt the (convention) by attacking media vehicles with explosives or incendiary device.”
Looks like I’m walking.
It does seem a whole lot more likely that it would be a fringe group that would try to take advantage of the convention and its surrounding events. Al Qaeda’s m.o. seems to be the attack where and especially when we’d least expect it.