"Smuggling gangs in Mexico have repeatedly sawed through new sections of President Trump’s border wall in recent months by using commercially available power tools..."

"... opening gaps large enough for people and drug loads to pass through, according to U.S. agents and officials with knowledge of the damage. The breaches have been made using a popular cordless household tool known as a reciprocating saw that retails at hardware stores for as little as $100. When fitted with specialized blades, the saws can slice through one of the barrier’s steel-and-concrete bollards in a matter of minutes, according to the agents, who spoke on the condition of anonymity because they were not authorized to speak publicly about the barrier-defeating techniques."

From "Smugglers are sawing through new sections of Trump’s border wall" (WaPo).