Taunt the Caged Beast quickie

Hey
Just a quick one - is Taunt the Caged Beast a directed action against both methuselahs(/minions) or just the first one chosen?
ie: can both attempt to block it as a action?

Thanks!

Taunt the Caged Beast
Action
Animalism
Enter combat with any vampire, with an optional maneuver in that combat.
Choose a ready vampire controlled by your predator and another controlled by your prey (not usable when only one other Methuselah is in the game). The chosen vampires enter combat. If only one is ready at the end of that combat, he or she gains 4 blood.

Both Methuselahs can attempt to block.

Rulebook: 6.2.2. Resolve Any Block Attempts

1. Who May Attempt to Block: If the action targets one or more other Methuselahs (or things controlled by other Methuselahs), then the action is called directed, and only the Methuselahs who are targeted (or control the targets) may use their ready untapped minions to attempt to block the action (going clockwise from the acting Methuselah, as usual).

Crywolf is correct.
To be more explicit: the action is targetting the two vampires. (You can't play it on someone with a Secure Haven)

Damn.
Thanks!