A$)$ Office for Terrorism and Financial Intelligence

B$)75$th Ranger Regiment

C$)$ U$.$S$.$ Special Operations Command

D$)$ Terrorist Tracking and Pursuit Group

E$)$ NORTHCOM

F$)$ Transportation Security Agency

G$)$ U$.$S$.$ marine Corps

H$)$ U$.$S$.$ Attorney's Office

I$)$ U$.$S$.$ Navy SEALS

$1)$ This agency is responsible for securing the United States includes land, air, and sea approaches to all $48$ continental states, Alaska, Hawaii, Canada, and Mexico.

$2)$ This unit is responsible for the Department's twin goals of safeguarding the financial system against illicit use and combating rogue nations, terrorist facilitators, weapons of mass destruction $($WMD$)$ proliferators, money launderers, drug kingpins, and other national security threats.

$3)$ This agency is responsible for many counterterrorism actions by the military.

$4)$ This group identifies non$-$immigrants who have overstayed the terms of their admission and who may pose a potential risk or threat to national security.

$5)$ This department has anti$-$terrorism units called the Chemical, Biological, Immediate

Response Force $($CBIRF$),$and a battalion$-$sized unit $($usually over $500$ soldiers$)$ that can be deployed to a terrorist incident anywhere in the world within $24$ hours.

$6)$ This office seeks to deter, detect, and

prevent future attacks within the United States by creating partnerships that $(1)$ coordinate anti$-$terrorism initiatives, $(2)$ initiate and support anti$-$terror training programs, and $(3)$ facilitate information sharing across all levels of government.

$7)$ This agency's enforcement arm is the federal air marshals, responsible for primarily securing aviation transportation assets $($e$.$g$.,$ commercial airliners$)$ domestically and internationally.

$8)$ This agency's mission is to provide

fully capable Special Operations Forces to defend the United States and its interests

and to synchronize global military operations against terrorist networks.

$9)$ This units missions include $(1)$ direct warfare action, $(2)$ special reconnaissance, $(3)$ unconventional warfare $($i$.$e$.,$ training, leading, and equipping guerilla forces behind enemy lines$),(4)$ foreign defense strengthening $($i$.$e$.,$ training and advising military, paramilitary, and law enforcement personnel of allied nations, normally in a non$-$combat environment$),$

and $(5)$ counterterrorism operations.

$10)$ Some of the missions of this unit include $1)$ direct action, seize, destroy, or capture enemy facilities and materials; $(2)$ airport seizure for use by follow$-$on forces; $(3)$ special reconnaissance, locate hostile forces for future operations; $(4)$ personnel recovery $(5)$ clandestine insertion to surprise the opponent, seize the initiative, and instill confusion

in hostile forces; and $(6)$ sensitive site exploitation, collect and analyze information gained on missions to conduct rapid follow$-$on operations.