Lahore, Apr. 23 : The United States is finding convincing Pakistan that the internal threat posed by extremism is a bigger threat to it than India, a "tough sell".
Delivering a lecture at the Harvard University, Central Command chief General David Petraeus said Islamabad must change its attitude towards New Delhi.
"The existential threat facing Pakistan is internal extremists and not India," The Daily Times quoted Petraeus, as saying.