Four out of 10 teachers in the United States feel their schools are not well guarded from a potential shooter entering the premises, according to a new survey.

A Gallup poll found that 28 percent of respondents said their schools are “not too protected,” while 12 percent said the institutions are “not protected at all.”

Only nine percent of those polled said their schools are “very protected,” but a slim majority, 51 percent, said the schools are “somewhat protected.”

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Sixty percent of the respondents said they would feel either "very prepared" or "somewhat prepared" in the event of an armed assailant entering their schools. But 29 percent said they would not feel too prepared should this happen, while 11 percent said they would feel "not prepared at all."

Results of the survey come more than one month after the school shooting in Parkland, Fla., that left 17 people dead and once again thrust the gun control debate into the national spotlight.

Many of the student survivors of the shooting have emerged as activists on the issue, pushing lawmakers for stricter gun policies.

But President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE has called for arming teachers in schools, a solution that was met with mixed reviews from Republican lawmakers and opposition from Democrats.

The poll of 497 American teachers was conducted online from March 5-12. It has a margin of error of plus or minus 7 percentage points.