Tampax has faced a backlash online after saying that 'not all people with periods are women'. The tampon company tweeted in support of transgender people and insisted that 'not all women have periods'. The company said: 'Fact: Not all women have periods. Also a fact: Not all people with periods are women. Let's celebrate the diversity of all people who bleed. But some feminists online accused Tampax's owner, Procter & Gamble, of 'erasing' women with their message. Others praised the company for the inclusivity and show of support to trans people in the tweet. Among those stoking the flames online...