your proof that she was appraised and concerned about the letter is that she caused the hard drive crashes, and your proof that she caused the hard drive crashes is concern over the letter.
how much more circular can it get?
Are you contending that she DIDN'T know? That nobody at the IRS called the Director of Exempt Organizations after receiving the Camp letter? That they just laughed it off and went out for after work drinks at Fridays?
You know as well as I do that Lerner would have either received a call about the Camp letter immediately after it was received or shortly thereafter.
As to whether she would have been "concerned" about it? Well, you'd have to be rather naive to believe that those 7 people's computer hard drives all crashed in a giant coincidence and amazingly none of them got backup of their data or had hard copies of them as they were required to have by law.
So I think it's logical to conclude that Lois Lerner was "concerned" about the Camp letter. I think it's logical to conclude that the Camp letter started a LANDSLIDE of "concern" in the Exempt Organizations Division!