NEW : Sister : Euna Lee `` skinny , '' Laura Ling struggling to talk because of isolation . " Laura Ling told family , `` It would have to be President Clinton , '' Lisa Ling says . Laura Ling plans to detail what transpired , sister says . Journalists Laura Ling and Euna Lee told Ling 's sister they were treated humanely in North Korea , and they believe they were n't sent to hard-labor camps because they have medical conditions , Lisa Ling said Friday . Euna Lee 's daughter keeps following her , Lisa Ling says .
NEW : Sister : Euna Lee `` skinny , '' Laura Ling struggling to talk because of isolation . " Laura Ling told family , `` It would have to be President Clinton , '' Lisa Ling says . Laura Ling plans to detail what transpired , sister says . Euna Lee 's daughter keeps following her , Lisa Ling says .