CBS News' Lana Zak and Carter Evans talk with Bryan Clark about the weaponry the U.S. is shipping to Ukraine and potential alternatives to establishing a no-fly zone.
Caption
Gunners from the Armed Forces of Ukraine fire at Russian position with a 155 mm self-propelled howitzer 2C22 in the Kharkiv region on April 21, 2024. (Anatolii Stepanov/AFP via Getty Images)