They're as guilty as the bombers.
Nah....they aren't by any means...weren't there, didn't build the bombs, weren't consulted about the bombings, didn't assist in carrying it out.
What they did do was attempt to cover up and intervene with the investigation...and one lied when confronted about that....that is what they are charged with.
I don't think there actions go far enough to say they were aiding and abetting the bombers because all their actions occurred after the bombings...and that in a panic and scared state from what the authorities are saying.... But covering up for the bomber..oh yeah!