Pakistan‚??s top court said Tuesday it could dismiss the prime minister unless he begins corruption proceedings against the president, opening another front against a government already under pressure from the army. Hours before the Supreme Court ruling, Islamist militants bombed a tribal militia opposed to the insurgency in its heartland close to the Afghan border, killing 30 people and proving the resilience of extremists despite repeated army offensives and U.S. missile strikes since 2008. A paralyzing strike called by labor unions to protest spiraling gasoline prices drew tens of thousands into the streets Tuesday to denounce government corruption in Nigeria. The anger also fueled violence that pitted Christians against Muslims in Nigeria‚??s southwest, where five were killed in attacks on a mosque and Quranic school. At least six people were wounded in the attacks in Benin City, Nigerian Red Cross spokesman Nwakpa O. Nwakpa said. On Monday, a mob tried and failed to set a mosque ablaze. Penn State President Rodney Erickson, who was brought in to lead the university out of the sex-abuse scandal that engulfed top administrators, will be paid $515,000 annually through June 2014 and then step down, the school said Tuesday. The deal Erickson signed could see him get raises based on his annual evaluations. The contract also calls for the use of a university car and ‚??standard benefits‚?Ě for school executives. Erickson intends to step down at the end of the contract, university spokeswoman Lisa Powers said. He first revealed his intentions in an interview Tuesday with the Pittsburgh Post-Gazette. Erickson was promoted from provost to president on Nov. 9 after the resignation of Graham Spanier in the aftermath of child sex abuse charges against retired assistant football coach Jerry Sandusky. Pennsylvania‚??s environmental chief says the U.S. Environmental Protection Agency has only a ‚??rudimentary‚?Ě understanding of the contamination in Dimock, the northeastern Pennsylvania village where residential water wells were fouled by a gas driller. Environmental Secretary Michael Krancer asserts EPA is in the ‚??very early stages of its learning curve‚?Ě as it investigates the case. Krancer allowed Houston-based driller Cabot Oil & Gas Corp. to halt deliveries of fresh water to a dozen households in Dimock more than a month ago. The EPA is considering a plan to send water to Dimock itself. Krancer made his comments in a letter to an EPA administrator in Philadelphia. An EPA spokeswoman had no immediate comment Tuesday.