(CNN) -- In a conference call with New York Gov. George Pataki and Mayor Rudy Giuliani, President Bush said he would visit New York City Friday to view the devastation from Tuesday's terror attacks. He told Pataki and Giuliani that America was enveloped in a "quiet anger" and said: "We will win this war." After his phone call, Bush and first lady Laura Bush visited some of the injured and the medical personnel at a Washington hospital. (Transcript) The president's comments came as airports across the nation reopened and investigators pressed their manhunt for those involved in the hijacking and crashes of four commercial jets on Tuesday -- two that destroyed the twin towers of New York's World Trade Center and a third that slammed into the western wall of the Pentagon in Washington. Latest developments • Officials in southwestern Pennsylvania said they have identified and cordoned off a second debris site about 6 to 8 miles away from the crash site of United Flight 93, the fourth hijacked plane in Tuesday's terror attack. Cell phone calls from passengers aboard the plane indicated the hijackers may have had a bomb and also that they were planning to try to retake the plane from the terrorists. • The Pentagon says that an estimated 190 people died in the Pentagon crash; the highest ranking officer was a three-star army general. The figure included the 64 passengers and crewmembers on the plane. (Full story) • Giuliani says that the number of missing in New York has now topped 4,760. The mayor said that 94 bodies have been recovered, 46 of them identified. • Rescuers in New York are searching for a survivor who contacted authorities via cell phone early Thursday morning. The survivor is believed to be in the basement of the northern World Trade Center tower. • One of two brothers who had been identified by federal authorities as possible hijackers involved in the terrorist attacks is alive and cooperating with the FBI, sources said. Federal sources initially had identified Adnan Bukhari and Ameer Bukhari as possible hijackers who had boarded one of the planes that originated in Boston. Bukhari's attorney, however, said that Adnan Bukhari was not involved and that Ameer Bukhari died in a small plane crash last year. The attorney said that the brothers' identification had been stolen. (Full story) • New York authorities fear the building at 1 Liberty Street and the Millennium Hotel could still collapse. • Authorities shut down New York's Staten Island at 8 a.m. on Thursday to begin a "grid search" for a vehicle. • Bomb-sniffing dogs were sweeping through the Pentagon Thursday morning as employees at the Washington D.C.-area facility returned to work. (Full story) • German police said they had detained a male airport worker and have brought in a woman for questioning. (Full story) • Sheriff's officers in Sebastian County, Arkansas, detained a man who was taken into custody after a massive search by federal agents for a vehicle that they found Wednesday. A jail employee told CNN the FBI told them not to comment for "national security reasons." A spokeswoman at FBI headquarters in Washington said, "We can't comment on that." • Authorities believe they have found the wheel of one of the planes that crashed into a World Trade Center tower four blocks away from ground zero. ***************************************************************************** KABUL, Afghanistan (CNN) -- International diplomats, aid workers and many reporters evacuated Afghanistan on Thursday amid growing fears the country may be involved in retribution attacks by the U.S. Reuters news agency also reported that many Arab nationals had fled the country and other residents had begun to build trenches. Three United Nations flights left the capital Kabul on Thursday for Pakistan. On board were three international diplomats, from U.S., Germany and Australia. They had been in the Kabul trying to secure the release of eight international aid workers on charges of converting Muslims to Christianity. Also on board the aircraft were the last of the international U.N. staff. The U.N. has now completed the evacuation of 80 staff in total. Before they left they paid off all local employees and packed key documents, taking them with them. Many overseas journalists who had been reporting from Afghanistan also boarded the planes. The International Committee for the Red Cross has also started to pull out its 30 international staff based in the country. The reduction of all international and overseas workers by independent non-governmental aid groups is also under way and expected to be completed later Thursday. 'Sad catastrophe' The departures have fuelled apprehension and fear on the streets about what will happen next. Residents have been listening to Taliban-run radio where there have been reports of the events in the U.S. Many Afghans, like the Taliban leadership, have condemned the terrorism attacks and offered their sympathy. But CNN's Nic Robertson in Kabul reports that they are very concerned about the possibility that they could be involved in retribution attacks on Afghanistan. The Taliban on Wednesday issued further statements condemning the terrorism in Washington and New York and appealing to the U.S. not to attack the country. Taliban officials called the attack a "sad humanitarian catastrophe." The Taliban appealed to the U.S. not to attack Afghanistan, saying the Afghan people were already in a great deal of misery. Wednesday's statement came after a meeting between senior Pakistani diplomats and Taliban officials. Pakistan is one of the only countries that recognizes the Taliban government. The Taliban was swift to deny any involvement in the terrorism attacks in New York and Washington. Sanctuary Taliban officials also denied that Osama bin Laden, the millionaire Saudi fugitive blamed for past terrorist attacks against American targets, was behind the attacks. Intelligence officials and other sources have told CNN that bin Laden -- living in sanctuary in Afghanistan -- or the Al Qaeda group he heads are considered suspects in the attacks. "There are good indications that persons linked to Osama bin Laden may be responsible for these attacks," an intelligence official told CNN, echoing the sentiments of some U.S. politicians. The Taliban gave sanctuary to bin Laden in 1996 mainly they say because of his role in war efforts that led to the withdrawal of Soviet Union forces from Afghanistan after 10-years of occupation. Significantly, the population and leadership are also concerned that any attacks could open the door for the Northern Alliance -- effectively the opposition government in Afghanistan which has been engaged in a long running civil war with the Taliban. The frontline of the conflict is around 30 miles (48 kilometers) from Kabul and has been more or less static for the past five years. The Taliban fears that a sustained attack by the U.S. could help push forward an offensive from the Northern Alliance to retake Kabul.