http://www.thesmokinggun.com/buster/barack-obama/birth-obama-certer-movement-098513
It appears to me the only solid kasha here is the first one.
Explained in other words I think the kasha is- and if it isnt theirs its mine: The bc gives the appearance of being curved at on the left margin. this should appear should cause the entire left margin to curve lightly in appearance (as anyone who has read photocopied mareh mkomos knows). If you look at this link http://i.cdn.turner.com/dr/teg/tsg/release/sites/default/files/assets/obamacurve.jpg what they have done is put more of the green background on the left of the actual doc. the pattern matches up. It shouldnt. The pattern of the actual doc should curve and end up slightly below the superimposed pattern.
