By Dietrich Knauth (Reuters) -A Johnson & Johnson subsidiary came under attack in court on Monday for attempting to use the bankruptcy process to resolve tens of thousands of claims that its baby powder and other talc-based products caused cancer. The subsidiary, LTL Management, is fighting to remain in bankruptcy, arguing that is the best way to reach an “equitable, efficient, and consensual resolution” of more than 38,000 claims alleging that J&J’s talc-based products caused cancers including mesothelioma. “At its core, this case is rotten,” Jeffrey Jonas, a lawyer for one of the plaintiffs’…