Is The Mara Salvatrucha gang, commonly known as MS-13 a threat to America ?

Not a threat but a DISGRACE get these crazy, lowlife, s out of the U.S.A!!! Most are illegal anyway! Yah baby face I don't want any pathetic gang members in my country especially ones that swam the Rio you can leave too. Gangs are for cowards I refuse to be threatened by cowards!