South Waziristan was supposedly cleared of militants in 2009 after an intense Pakistani Army offensive there, but many of the militants fled to North Waziristan, the Associated Press reports. US airstrikes have lately focused on that area because Pakistan has resisted staging an offensive there. North Waziristan's militants appear to be more focused on staging attacks across the border in Afghanistan than against Pakistani targets. Reuters reports that rumors of a major Army offensive in North Waziristan have driven many of the militants back into the south.
Pakistan's Army and intelligence agency have been under intense scrutiny since the US raided Osama bin Laden's compound in the country in May. Since Mr. bin Laden's killing, the US has expressed increasing concern about Pakistan's commitment to fighting militancy. On Wednesday, CIA Director Leon Panetta urged Pakistan to do more, AFP reports.
"It is vital that Pakistan live up to its end of the bargain, cooperating more fully in counterterrorism matters and ceasing to provide sanctuary to Afghan Taliban and other insurgent groups," Mr. Panetta said in a statement to US legislators.
Pakistan is frustrated by what it sees as a lack of international acknowledgement of the toll that counterterrorism efforts have taken. AFP reports that more than 4,400 people have been killed in the country since it began the anti-Islamist offensive in 2007.