Legal news Roundup - March 24, 2014Compiled By Mallory Hendry CanadaOttawa urges arbitration in CN Rail union dispute, ReutersOntario judge’s decision to give Iran’s $7-million worth of state assets in Canada to victims of terrorism branded 'politically motivated,' of 'no legal value', The National Post Medical marijuana patients win right to keep growing plants until constitutional challenge of new system, Toronto StarUnited StatesLawsuit claims GM must pay for pre-bankruptcy ignition deception, ReutersU.S. appeals court upheld Federal Reserve's controversial rules for debit card 'swipe fees', ReutersInternationalTalks with Asian regulators delay Nokia's deal with Microsoft, ReutersAustralia debates extraditing alleged Silk Road moderator, Reuters