In 2007 Meredith Kercher, an English student studying in Italy, was brutally murdered, three people were convicted of her murder subsequently two were acquitted.
One of those acquitted is Amanda Knox, she is now a student at the University of Washington and has recently written her memoirs in a deal reportedly worth $4m (£2.6m). If she were to have her appeal turned down and her previous conviction upheld on appeal, Italy could request her extradition. It would then be up to the US to decide whether to agree to the move, something that is highly unlikely to happen.
America is very keen to have extradition treaties in place so long as it is only one way, foreign nationals into America.
The UK government has been guilty of some appalling decisions in recent years.
It is almost unknown for the USA to extradite its nationals, irrespective of how heinous the crime.
In the view of England Watch extradition should work both ways or no way!