Britons have been given a fresh travel warning for Kenya after a US alert urged holidaymakers to exercise increased caution. The popular destination, which holidaymakers flock to for the Maasai Mara National Reserve, incredible Mount Kenya and stunning beaches, may pose to Britons due to terrorism and criminal kidnap. The Foreign, Commonwealth and Development Office (FCDO) alerted holidaymakers to a travel advisory issued by the United States Embassy in Kenya on September 13. The travel advisory read: “The US Embassy in Nairobi reminds US citizens in Kenya that they should exercise increased c…