April 6 -- Glencore has agreed to sell a 40 percent stake in its agriculture unit to Canada's largest pension fund in a $2.5 billion deal. Peter Tague, co-head of global M&A at Citigroup, and Bloomberg's Stuart Wallace discuss the deal on "Bloomberg Surveillance." (Peter Grauer, the chairman of Bloomberg LP, the parent of Bloomberg News, is a senior independent non-executive director at Glencore.)