The Lincoln Memorial Reflecting Pool on Washington’s National Mall is set to be drained again for repairs after algae and peeling paint appeared just weeks after a US$14.7 million renovation, while President Donald Trump threatened prison time for anyone caught damaging the pool.The DC Water authority issued a permit to drain the 609-metre rectangular pool, it said on Monday, while the repair company said it would fix the pool as part of its warranty.Peeling paint and algae growth have been...