TERROR

Analysts worry that terrorist attacks like those in Paris will remain difficult to detect

  • FILE - This file photo combination of images provided by The Paris Police Prefecture shows suspects Cherif, left, and Said Kouachi who authorities said carried out an attack at the Charlie Hebdo newspaper. U.S. and French intelligence officials are leaning toward an assessment that the Paris terror attacks were inspired by al-Qaida but not directly supervised by the group. (AP Photo/Prefecture de Police de Paris, File)

    FILE - This file photo combination of images provided by The Paris Police Prefecture shows suspects Cherif, left, and Said Kouachi who authorities said carried out an attack at the Charlie Hebdo newspaper. U.S. and French intelligence officials are leaning toward an assessment that the Paris terror attacks were inspired by al-Qaida but not directly supervised by the group. (AP Photo/Prefecture de Police de Paris, File)  (The Associated Press)

  • French soldiers prepare to leave their garrison to patrol in Paris, Wednesday, Jan. 14, 2015. France ordered 10,000 troops into the streets Monday to protect sensitive sites — nearly half of them to guard Jewish schools — as it hunted for accomplices to the Islamic militants who left 17 people dead as they terrorized the nation. (AP Photo/Thibault Camus)

    French soldiers prepare to leave their garrison to patrol in Paris, Wednesday, Jan. 14, 2015. France ordered 10,000 troops into the streets Monday to protect sensitive sites — nearly half of them to guard Jewish schools — as it hunted for accomplices to the Islamic militants who left 17 people dead as they terrorized the nation. (AP Photo/Thibault Camus)  (The Associated Press)

U.S. and French intelligence officials are leaning toward an assessment that the Paris terror attacks were inspired by al-Qaida but not directly supervised by the group.

One of the two brothers who carried out the attack at the Charlie Hebdo newspaper is believed to have traveled briefly to Yemen and met an al-Qaida leader. Yet U.S. intelligence officials are not convinced that the Paris attacks were directed from abroad.

Investigators also are not convinced that the man who killed five people in Paris in separate incidents coordinated with the brothers.

Such assessments place the attacks on a continuum of violence by disaffected individuals who have become sympathetic to al-Qaida, the Islamic State group or their ilk — yet are not involved in an international conspiracy that is easier to detect.