The first sentence of the Area modifier says, "This extra allows an effect that normally works on a single target to affect an area."  I feel this wording implies that it can be applied to any Effect, even if doesn't cause damage, even though the rest of the modifier's description elaborates on how it applies to damaging effects.  If everyone else disagrees, I'll go ahead and change it.<br/><br/>Another option would be to add the "Affects Others" Modifier so I can give the Protection effect to everyone in the Area.  Of course, then I would have to remove Impervious to maintain the Power's cost.  Or I could remove Area, so I could only stretch the Force Field around people I was directly touching.