I am sure we have issues in our families and our sisters/brother's with their respective In laws.
As much as you want your siblings to be happy but upto what extent would you go to help them? Would ypu go and confront your sister's MIL to talk about her husband's ( assumed) extra relationship?
Would you go and confront your sister's husband to start talking to his father he hasn't met in 20 some years.
Lets discuss what really happens in real life and how practical/feasible this all is.
I would confront my BIL if he beats up my sister or the In laws are pressing for dowry or they are giving my sister hell because she has not provided them a son ( you know, the issues which are directly effecting my sister and which are not her fault ) .
But I don't think, in right mind, even my parents would let me go and do what Saloni is trying to do
Kshitij was right is asking, why can't she leave the issue alone.
Just my 2 cents and would love to hear your wonderful opinions and feelings.