FBI discovers an increase in terrorist-linked incidents

Terrorist incidents in the US this year were up about 50 percent, William Webster, director of the Federal Bureau of Investigation, said. He said the FBI is still analyzing the reasons for the sudden increase to 43 incidents, after a four-year decline from the peak of 100 in 1977.

But he noted groups active in alleged terrorist activities, including anti-Castro Cubans, groups opposing Philippine President Ferdinand Marcos, some Armenians, and individuals supporting the independence of Puerto Rico.

He said most of the terrorist causes don't involve the US, but he did voice concern over terrorism linked to supporters of Puerto Rican independence.