About 5 1/2 mins each.
Blowback - the unintended consequences of covert operations. Blowback appears (to its victims) to be random and without cause (why do they hate us?), because the public is unaware of the secret operations that provoked it.
Practical example - your teenager joins a gang. Typically, you will not be informed of this directly.
You will find out when a) your house becomes a target of rival gang members or b) the local police contact you after your teen is arrested, injured, or killed as result of 'membership'.