As the Obama administration weighs responding to a possible chemical attack by Syrian President Bashar Assad’s forces, lawmakers say their chief concern is the weapons stockpiles falling into the wrong hands.

Lawmakers from both parties say they don’t support U.S. boots on the ground in Syria, but are warning that the weapons must be safeguarded from terror groups if Assad’s regime collapses.

There’s been a large outcry for the Obama administration to do more in Syria after the White House said that it believed Assad’s forces used chemical weapons. President Obama has taken a cautious approach, saying that the U.S. must first verify chemical weapons use before taking more aggressive steps.

But the issue of securing the chemical weapons highlights the difficult question of how far America should wade into the two-year old civil war in Syria.