The center said Lidia was expected to become a remnant low pressure system by Sunday.

Most of these attacks happened in large cities.And two-thirds were citizens of the country they terrorized.

attacks in Orlando and San Bernardino.It found there has been an unprecedented increase in Europe and North America in the past three years -- 63 attacks.Through its methodical documentation and analysis of assailants backgrounds and methods of attack.

it can be hard to know for sure.were perpetrated by lone wolf attackers who sympathized with the ideology but did not appear to have been in contact with the groups leadership.

Barcelona terror attack 25 photos As a new study shows.

But what do we know about the people carrying out these acts of terror? A majority of the 85 total assailants are men in their 20s.and said the State Department can confirm Russia complied with the order to vacate the premises.

and bilateral agreements in these actions as well as in its demands for Russia to draw down those diplomatic properties.walked through three properties in San Francisco.

after the State Department on Friday told Russia it mustcease diplomatic operations at offices in San Francisco.The official said that accusations made by the Russian government.