Later today, the 12 countries that make up the Trans Pacific Partnership, a massive global trade deal that includes Canada, the United States, and Japan, will gather in New Zealand to formally sign the agreement (the official signing day is February 4th, but with time zone differences, the signing ceremony starts at 5:30 pm ET on the 3rd). Signing the TPP is a major step forward for the controversial treaty, but questions still abound over whether it will be ratified and take effect.