In episode 1.6 when Demetri finds the first members of the Blue Hands Club, he shows the camera Ian Rutherford's passport which clearly states he was born in Dec 1985 - later in episode 1.7 the MI6 Agent Fiona Banks states Rutherford was born in 1984.
During their shared flash forward, Gough and Agent Banks are shown in the MI6 offices, sitting in front of a window out of which the London Eye and the Houses of Parliament can clearly be seen. These constructions, however, are both almost two miles downriver from the MI6 building.
After Nicole calms down a Japanese lady in the hospital over a potted plant being in her room in Japanese, she explains to the staff that "Sweet Peas symbolize 'goodbye' in Japanese culture." However, the sentiment isn't that it symbolizes "goodbye", but there is a superstition that because the plant is in the ground that it would carry the sentiment that the patient will be put in the ground as well. And this applies to all plants that are potted, not just Sweet Peas.