From the article:

So let us look at Clinton's war on terror. Thirty-eight days after Clinton was sworn in, al-Qa'ida attacked the World Trade Centre. He did not visit the twin towers that year, even though four days after the attack he was minutes away in neighbouring New Jersey, talking about job training. His only public mention of the bombing was a few paragraphs stuffed into a Saturday radio address, which was devoted to an economic-stimulus package. Those stray paragraphs were limited to reassuring the public and thanking the rescuers, the kinds of things governors say after floods. He did not even vow to bring the bombers to justice. Instead, he turned the first terrorist attack on American soil over to the FBI and forgot about it.

In his Fox interview, Clinton said "no one knew that al-Qa'ida existed" in October 1993 during the tragic events in Somalia. False. Clinton's national security adviser, Tony Lake, told me that he learned of bin Laden in 1993 and by 1994 regularly briefed the president on the terrorist. US Army captain James Francis Yacone, a Black Hawk squadron commander in Somalia, later testified in a US court that radio intercepts of enemy mortar crew firing at Americans were in Arabic, not Somali. While bin Laden's men speak Arabic, warlord Farah Aideed's men did not. CIA and Defence Intelligence Agency reports as well as reports from Ethiopian and Sudanese services placed al-Qa'ida operatives in Somalia at the time.

By the end of Clinton's first year, al-Qa'ida had apparently attacked twice. Al-Qa'ida attacks would continue for every one of the Clinton years, climbing in lethality.