The US State Department has issued an official travel advisory that will equally apply to every country's citizen intending to travel to London, and the UK on the threat of crimes. The "catalogue of dangers" facing tourists in the capital city which could further hit UK's tourism industry include rapes by unlicensed cab drivers, muggings and ATM scams.

"The advisory is vital to ensure travelers are well-prepared," insist the State Department travel advisory. "Despite its excellent overall safety record, British trains have poor track conditions, resulting in train derailments, including some fatalities."

A CBS News poll in 2006 asking respondents how safe they feel showed 54 percent of Americans say they feel generally safe, while 46 percent say they feel somewhat uneasy, or in danger. "World terrorism has caused a decline in the number of US visitors to the UK, resulting in losses to hotels and major attractions."