Families of the 67 people who died in an aircraft collision last January marked the first anniversary Wednesday eveningFamilies of 67 killed in US aircraft crash remember loved ones and call for reformsPeople attend the National Transportation Safety Board (NTSB) hearing on the midair aircraft collision that killed 67 people near Washington Reagan National Airport, in Washington, Tuesday, Jan. 27, 2026. (AP Photo/Jose Luis Magana)People attend the National Transportation Safety Board (NTSB) hearing on the midair aircraft collision that killed 67 people near Washington Reagan National Airport, in Washington, Tuesday, Jan. 27, 2026. (AP Photo/Jose Luis Magana)People attend the National Transportation Safety Board (NTSB) hearing on the midair aircraft collision that killed 67 people near Washington Reagan National Airport, in Washington, Tuesday, Jan. 27, 2026. (AP Photo/Jose Luis Magana)People attend the National Transportation Safety Board (NTSB) hearing on the midair aircraft collision that killed 67 people near Washington Reagan National Airport, in Washington, Tuesday, Jan. 27, 2026. There wasn't one single cause for the crash, according to testimony from National Transportation Safety Board investigators on Tuesday during an hourslong hearing.