This chapter shows that the changes in the nature of terrorism since the 1970s affected global antiterrorist conventions and policies. US extradition treaties remained largely unchanged during the 1960s and 1970s. The 1980s witnessed an encompassing metamorphosis in US antiterrorism and extradition policies. The threat of terrorism, the growth in drug trafficking and the attempts to retrieve war criminals from the Holocaust, together with a steady rise in the number of extradition requests slowly started to affect US extradition treaties. Some new wordings emerged and some treaties started to limit the political offence exception, but typically in a modest and careful manner. The protection offered to violent political criminals was limited for the first time since the attentat clause and the anarchist offence exceptions. Even if UN treaties attempted to make the extradition of certain types of offenders a rule rather than an exception, and thus distance it from political considerations, extradition was continuously used for political purposes.