The gang has more than 30,000 members internationally - mainly in El Salvador, Mexico, Honduras and Guatemala - and over 6,000 members in the U.S.
The poll shows 61% of Americans support the plan to relax immigration policy for some undocumented people when it is described in general terms without using Obama's name.
He met with public health and national security officials.
The changes will facilitate travel to Cuba by allowing blocked space, code-sharing, and leasing arrangements with Cuban airlines.
Some young migrants have been placed in homes where they were sexually assaulted, starved, or forced to work for little or no pay, an Associated Press investigation has found.
A report released by WOLA and VPC states that many of the guns trafficked to Mexico from the United States are not manufactured in the U.S., but in places like Romania and Bulgaria.
Amtrak has also canceled or cut back on service.
4,100 flights were canceled for Saturday in Philadelphia, Washington and New York, with airlines essentially shutting down all flights into those cities.
English22/01/2016
Snowstorm hits the United States
One in seven Americans will get at least half a foot of snow outside their homes.
Almost half the super-rich individuals are from the United States, 17 from Europe, and the rest from countries including China, Brazil, Mexico, Japan and Saudi Arabia.