Line Of Sight Advantage and Penetrative Targeting Sense

[Steve]

If a character has the Line of Sight Advantage on a non-mental attack power, and they have a targeting sense with the Penetrative enhancer, does this Advantage allow them to attack something they can perceive, even if it is behind something they are perceiving through?

[Steve Long]

A character in that situation can certainly try to hit the target if he wants -- but even though he can see through whatever obstacle is between them, that doesn't mean his attack passes right through it. Unless the attack is Indirect (in a form that would allow the attack to bypass the obstacle), he has to do enough damage to break through the obstacle. Then, any remaining damage applies to the target (assuming the attack hits). So even though it's possible, the odds are it won't be very effective.