LONDON (Reuters) -Britain's foreign minister David Lammy could be on the hook for a 2,500 pounds ($3,394) fine following his fishing trip last week with U.S. Vice President JD Vance, after admitting he didn't have the required licence. Vance and Lammy were pictured by invited media as they fished in the lake at the foreign minister's Chevening country residence in southeast England before a bilateral meeting as part of the vice president's working holiday to Britain.