阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 Terrorist incidents One of the
most spectacular terrorist incidents in U.S. history was the bombing of the
World Trade Centre in New York in 1993 by Islamic radicals. This incident
aroused anxiety about the threat posed by foreign residents from nations hostile
to the United States. Six people died in the bomb, which caused an estimated
$600 million in property and other economic damage. Trials that followed
sentenced six people of carrying out the attack. In addition to
foreign-sponsored terrorism, the United States has an abundant history of
domestic terrorism. Early in the 20th century, labour leaders such as William
Dudley openly supported a philosophy of revolutionary violence.
In the late 1960s and early 1970s, during the latter stages of the U.S.
involvement in the Vietnam War, some terrorist groups bombed buildings on
university campuses throughout the country and at corporation headquarters and
government buildings in New York City. Between 1978 and 1995, a
terrorist known as the Unabomber planted or mailed homemade bombs that killed 3
people and wounded 23 others in 16 separate incidents throughout the United
States. The Unabomber, who claimed an agreement with radical environmentalists
and others opposed to the effects of industrialization and technology, targeted
university professors, corporate executives, and computer merchants.
In April 1996 federal agents arrested Theodore Kaczynski, a suspect they
thought to be the Unabomber. Kaczynski, a Harvard-educated former math
professor, admitted his guilty to 13 federal charges in 1998 in exchange for
agreement that prosecutors would not request the death penalty during
sentencing. The court sentenced Kazynski to four life terms plus 30 years and
ordered him to pay $15 million in compensation. In April 1995 a
truck bomb exploded in front of the Federal Building in Oklahoma City, killing
168 people and injuring more than 500, making it one of the deadliest terrorist
attacks in United States history. Federal agents arrested two men McVeigh and
Nichols, who belonged to an extremist group advocating resistance to national
laws and political institutions. In June 1997 McVeigh was found
guilty of murder in connection with the bombing and sentenced to death. Later in
the year Nichols was convicted of the less severe charges of manslaughter and
conspiracy, and he was sentenced to life in prison in June 1998. McVeigh was
executed in 2001. Resulting from the bombing of the Word Trade Center, Americans feared that they would be attacked by the nations hostile to America.